Mathematics homework help

  1. Use the given conditions to write an equation for the line in the indicated form.
    Passing through (5, 3) and perpendicular to the line whose equation is y = x + 5;
    slope-intercept form

    1. y = 7x – 38
    2. y = – 7x + 38
    3. y = – 7x – 38
    4. y = – x – 
  2. Question 22.5 PointsUse the given conditions to write an equation for the line in the indicated form.
    Passing through (3, 2) and parallel to the line whose equation is ;
    point-slope form

    1. y – 2 = 2(x – 3)
    2. y = 2x
    3. y – 2 = x – 3
    4. y – 3 = 2(x – 2)
  3. Question 32.5 PointsSolve the equation by factoring.
    x 2 = x + 30

    1. {5, 6}
    2. {-5, -6}
    3. {1, 30}
    4. {-5, 6}
  4. Question 42.5 PointsSolve the equation by factoring.
    7 – 7x = (4x + 9)(x – 1)

    1. {-1, 4}
    2. {-4, 1}
  5. Question 52.5 PointsSolve the equation using the quadratic formula.
    5x 2 + x – 2 = 0

  6. Question 62.5 PointsSolve the equation using the quadratic formula.
    x 2 – 6x + 25 = 0

    1. {3 – 16i, 3 + 16i}
    2. {3 + 4i}
    3. {-1, 7}
    4. {3 – 4i, 3 + 4i}
  7. Question 72.5 PointsSolve the problem.
    The total cost in dollars for a certain company to produce x empty jars to be used by a jelly producer is given by the function C(x) = 0.8x + 40,000. Find  the cost of producing 50,000 jars.

    1. $50,040
    2. $40.80
    3. $40,000
    4. $80,000
  8. Question 82.5 PointsUse the vertex and intercepts to sketch the graph of the quadratic function.
    f(x) = 2 + 3x + x 2

  9. Question 92.5 PointsUse the vertex and intercepts to sketch the graph of the quadratic function.
    f(x) = 8 – x 2 + 2x

  10. Question 102.5 PointsAdd or subtract as indicated and write the result in standard form.
    (6 – 10i) + (7 + 7i) + (-4 – 5i)

    1. 13 – 3i
    2. 17 + 2i
    3. 9 – 8i
    4. -5 – 22i
  11. Question 112.5 PointsAdd or subtract as indicated and write the result in standard form.
    (4 + 3i) – (-8 + i)

    1. -4 + 4i
    2. 12 – 2i
    3. 12 + 2i
    4. -12 – 2i
  12. Question 122.5 PointsFind the product and write the result in standard form.
    (-9 – 3i)(2 + i)

    1. -21 – 15i
    2. -15 – 15i
    3. -21 – 3i
    4. -15 – 3i
  13. Question 132.5 PointsComplex numbers are used in electronics to describe the current in an electric circuit. Ohm’s law relates the current in a circuit, I, in amperes, the voltage of the circuit, E, in volts, and the resistance of the circuit, R, in ohms, by the formula  Solve the problem using this formula.
    Find E, the voltage of a circuit, if I = (18 + i) amperes and R = (3 + 2i) ohms.

    1. (52 – 39i) volts
    2. (52 + 39i) volts
    3. (18 – 39i) volts
    4. (18 + 39i) volts
  14. Question 142.5 PointsUse the vertical line test to determine whether or not the graph is a graph in which y is a function of x.

    1. not a function
    2. function
  15. Question 152.5 PointsUse the vertical line test to determine whether or not the graph is a graph in which y is a function of x.

    1. not a function
    2. function
  16. Question 162.5 PointsFind the slope of the line that goes through the given points.

    1. – 
    2. Undefined
    3. – 
  17. Question 172.5 PointsFind the slope of the line that goes through the given points.
    (-8, 8), (-3, 8)

    1. 1
    2. 0
    3. 4
    4. 14
  18. Question 182.5 PointsFor the given functions f and g , find the indicated composition.

    1. 83,028
    2. 54,168
    3. 46,317
    4. 7851
  19. Question 192.5 PointsUse the vertex and intercepts to sketch the graph of the quadratic function.
    f(x) = (x + 5) 2 + 6

  20. Question 202.5 PointsUse the vertex and intercepts to sketch the graph of the quadratic function.
    f(x) = 4 – (x – 2) 2

  21. Question 212.5 PointsUse the given conditions to write an equation for the line in point-slope form.
    Slope = , passing through (5, 7)

    1. y + 7 = (x + 5)
    2. y – 7 = (x – 5)
    3. y = x + 5
    4. x – 7 = (y – 5)
  22. Question 222.5 PointsFind the coordinates of the vertex for the parabola defined by the given quadratic function.
    f(x) = 3 – x 2 + 2x

    1. (- 1, 4)
    2. (1, – 4)
    3. (1, 4)
    4. (- 1, – 4)
  23. Question 232.5 PointsFind the x-intercepts (if any) for the graph of the quadratic function.
    f(x) = x 2 – 9

    1. (-9, 0)
    2. (3, 0)
    3. (-3, 0) and (3, 0)
    4. No x-intercepts
  24. Question 242.5 PointsFind the coordinates of the vertex for the parabola defined by the given quadratic function.
    f(x) = 7 – (x + 4) 2

    1. (7, 4)
    2. (4, 7)
    3. (7, -4)
    4. (-4, 7)
  25. Question 252.5 PointsUse the given conditions to write an equation for the line in slope-intercept form.
    Passing through (5, 3) and (4, 6)

    1. y = 3x + 18
    2. y = mx + 18
    3. y – 3 = – 3(x – 5)
    4. y = – 3x + 18
  26. Question 262.5 PointsUse the given conditions to write an equation for the line in slope-intercept form.
    Slope = -2, passing through (-6, 7)

    1. y – 7 = -2x + 6
    2. y – 7 = x + 6
    3. y = -2x – 5
    4. y = -2x + 5
  27. Question 272.5 PointsDetermine the constant that should be added to the binomial so that it becomes a perfect square trinomial. Then write and factor the trinomial.
    x 2 – 8x

    1. 16; x 2 – 8x + 16 = (x – 4) 2
    2. -16; x 2 – 8x – 16 = (x – 4) 2
    3. 64; x 2 – 8x + 64 = (x – 8) 2
    4. -64; x 2 – 8x – 64 = (x – 8) 2
  28. Question 282.5 PointsSolve the equation by completing the square.
    x 2 + 14x + 26 = 0

  29. Question 292.5 PointsCompute the discriminant. Then determine the number and type of solutions for the given equation.
    x 2 + 4x + 3 = 0

    1. 4; two unequal real solutions
    2. -28; two complex imaginary solutions
    3. 0; one real solution
  30. Question 302.5 PointsGiven functions f and g, determine the domain of f + g.

    1. (- , 10) or (10, )
    2. (- )
    3. (0, )
    4. (- , -3) or (-3, )
  31. Question 312.5 PointsUse the graph to determine the function’s domain and range.

    1. domain: (- )
      range: (- )
    2. domain: x = – 
      range: y = 5
    3. domain: (- )
      range: y = 5
    4. domain: x = – 
      range: (- )
  32. Question 322.5 PointsGiven functions f and g, perform the indicated operations.

    1. (3x + 4)(3x – 2)
    2. (3x + 4)(9x – 4)
  33. Question 332.5 PointsDetermine whether the relation is a function.
    {(-8, -9), (-8, 9), (1, 3), (3, 5), (10, -9)}

    1. Not a function
    2. Function
  34. Question 342.5 PointsDivide and express the result in standard form.

    1.  + i
    2.  + i
    3. –  – i
    4. –  – i
  35. Question 352.5 PointsDivide and express the result in standard form.

    1. -1 + i
    2. 1 + i
    3. -1 – i
    4. -1 + 2i
  36. Question 362.5 PointsGive the domain and range of the relation.
    {(-3, 10), (-2, 5), (0, 1), (2, 5), (4, 17)}

    1. domain: {-3, -2, 0, 2, 4}; range: {10, 5, 1, 17}
    2. domain: {10, 5, 1, 17}; range: {-3, -2, 2, 4}
    3. domain: {-3, -2, 2, 4}; range: {10, 5, 1, 17}
    4. domain: {10, 5, 1, 17}; range: {-3, -2, 0, 2, 4}
  37. Question 372.5 PointsPerform the indicated operations and write the result in standard form.

  38. Question 382.5 PointsPerform the indicated operations and write the result in standard form.

  39. Question 392.5 PointsFind the domain of the function.
    f(x) = x 2 + 8

    1. [-8, )
    2. (- )
    3. (- , -8)  (-8, )
    4. (-8, )
  40. Question 402.5 PointsFind the domain of the function.
    f(x) = 

    1. (- , 5)  (5, )
    2. (- )
    3. (- , 0)  (0, )
    4. (5, )

Statistics homework help

  1. Open the data “ch8_cps” on Rstudio
  2. How many variable, number of observaPons, and dummy variables do we have?
  3. Run a regression of ahe on age, what is the model and what is the predicted equaPon
  4. What is the effect of age on ahe?
  5. Provide the scaUer plot and the fiUed regression line.
  6. Run a non-linear cubic regression of ahe on age (meaning run ahe on age, age squared,
    and age cubic. )
  7. Write down the model and the predicted equaPon for part 6.
  8. Looking at the significance of the cubic term in regression part 6, do you prefer this
    model (cubic) or would you go with a quadraPc model? Or even a linear model?
  9. Inpart6whatistheeffectofageonahe?isiteasytoread?(No)
  10. Provide/add the fiUed curve of regression part 6 on the scaUer plot (you did in part 5).
  11. Run a mulPple regression of ahe over age, age squared, age cubic, female, yrseduc. (all
    in 1 regression). Which coefficients are significant? why?
  12. What is the RSquared of regression you run in part 11? What does this number mean?
  • attachment

    Assignment13.pdf
  • attachment

    ch8_cps2.pdf
  • attachment

    ch8_cps2.xlsx

Statistics homework help

  1. Open the data “ch8_cps” on Rstudio
  2. How many variable, number of observaPons, and dummy variables do we have?
  3. Run a regression of ahe on age, what is the model and what is the predicted equaPon
  4. What is the effect of age on ahe?
  5. Provide the scaUer plot and the fiUed regression line.
  6. Run a non-linear cubic regression of ahe on age (meaning run ahe on age, age squared,
    and age cubic. )
  7. Write down the model and the predicted equaPon for part 6.
  8. Looking at the significance of the cubic term in regression part 6, do you prefer this
    model (cubic) or would you go with a quadraPc model? Or even a linear model?
  9. Inpart6whatistheeffectofageonahe?isiteasytoread?(No)
  10. Provide/add the fiUed curve of regression part 6 on the scaUer plot (you did in part 5).
  11. Run a mulPple regression of ahe over age, age squared, age cubic, female, yrseduc. (all
    in 1 regression). Which coefficients are significant? why?
  12. What is the RSquared of regression you run in part 11? What does this number mean?
  • attachment

    Assignment13.pdf
  • attachment

    ch8_cps2.pdf
  • attachment

    ch8_cps2.xlsx

Statistics homework help

 

  1. Hearsay is a statement that offers evidence that proves the truth of the matter in a statement this is besides any statements made by declarant during testifying at trial (Hail, 2014). Hearsay evidence may be deemed inadmissible in a criminal proceeding if a statute or rule does not prove otherwise. For example if Joey is on trial and his friend Brian stands outside the court room stating exactly how Joey is guilty this is hearsay. This evidence would be secondhand and deemed inadmissible which means it serves no use to the trial or court whether this information is true or false. Another form of inadmissible hearsay would be a witness stating her testimony and someone from outside of the court room stating a testimony. This would be inadmissible whether the information is true or false due to them not being an actual witness to the case.

 

  1. Hearsay is a statement that the declarant does not make while testifying at the current trial or hearing; and the party offers evidence to prove the truth of the matter asserted in the statement (Hails, 2018). The rule against using hearsay evidence is to prevent out-of-court, second-hand statements from being used as evidence at trial, given their potential unreliability (FindLaw’s Team, 2019). Hearsay evidence may be deemed inadmissible. For example, a couple in Jane’s job is going through a divorce. Jane heard a rumor from her coworkers that Joe was unfaithful to his wife but did not have evidence that Joe was unfaithful to his wife. Jane did not observe Joe cheating, nor did Joe tell Jane he was cheating, therefore not having direct knowledge of the affair. Jane would not be able to testify during the divorce proceeding about Joe being unfaithful. Another example, Angel is a witness for a murder trial. Being the first witness, Angel testifies that Liz told him that she saw the defendant kill the case’s victim. Liz did not testify at the trial. The statement that Angel made was to show that the defendant killed the victim. It would be considered inadmissible hearsay evidence.

 

  1. Hearsay is when a  witness is reciting an out-of-court statement to prove the truth of the issue asserted. For example, a law enforcement officer can be called to stand to verify what the witness said during the interrogation. Hearsay evidence may be inadmissible in a criminal proceeding for many reasons. The first reason being if the witness clearly shows signs that they are mentally or emotionally unstable to make a statement. This is inadmissible because it is not reliable that the statement the witness gives is valid. The second reason is if the witness changes their alibi or the sequence of events when the crime occurred. If the witness keeps changing the story it is not reliable, it just proves that the witness is a liar.

 

  1. Hearsay is a statement which is made outside of the courtroom, brought up in an attempt to prove its assertion. For example, if Johnny testifies in a court of law that he heard his friend Logan tell him that he witnessed a murder carried out by the defendant, but the Logan is not at the trial, this statement is considered hearsay. Because the statement being discussed is made by someone from outside of a courtroom. Another example would be a similar situation in which Johnny testifies the same as he did the first time, but Logan is actually able to testify at the trials. In this situation, the hearsay is admissible.

 

  1. Hearsay is information received from other people that one cannot adequately confirm. From a legal standpoint, it is testimony from a witness under oath who is reciting an out-of-court statement which is being offered to prove the truth of the matter asserted. In most courts, hearsay evidence is inadmissible unless an exception applies.

For example, to prove that Tom was in town, the attorney asks a witness, “What did Susan tell you about Tom being in town?” Since the witness’s answer will rely on an out-of-court statement that Susan made, if Susan is unavailable for cross examination, the answer is hearsay. Note, however, that if the attorney asking the same question is not trying to prove the truth of the assertion about Tom being in town but the fact that Susan said the specific words, it may be acceptable.  If you’re facing a criminal trial, there may be several pieces of evidence that the government is relying on for their case. However, that doesn’t mean that the evidence is admissible in court. A skilled criminal defense attorney can challenge questionable evidence, such as hearsay statements, and help you prepare your strongest defense.
 
 
 
 
 
 
 
 
 
 
 
Assignment 1: Descriptive Statistics
 
Author’s Name
 
Strayer University
 
MAT300
 
Date
 
 
Assignment 1: Descriptive Statistics
 
Introduction
 
Begin your first paragraph here.  Be sure to indent each new paragraph. Your introduction should include the name of your article. Please remember that the article you choose, must be published during this quarter. You should include the title and topic of the article in the introduction and a brief overview of the topic.
Your paper must be typed, double spaced throughout (including the references page), using Arial, Calibri Courier, Times New Roman font (size 10-, 11-, or 12), with one-inch margins on all sides (Strayer Writing Standards, 2018).  For citations and references, please follow Strayer Writing Standards (SWS) format. There is a link within the assignment that is labeled Strayer Writing Standards. Please refer to that document before you begin writing your paper. Check with your professor for any additional instructions.
You must include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. This is already set up for you in the template, so just enter your name where it says Author’s Name and enter the appropriate date. The cover page and the reference page are not included in the required assignment page length. The paper should be 2-3 pages without the cover page and reference page, so that means 4-5 pages total with the cover page and reference page.
Summary
You can share the summary of the article you chose in this section.
Descriptive Statistics
In this section, please explain how the article uses descriptive statistics.  The article should use one of the following categories of descriptive statistics:

  • Measures of Frequency – Counting Rules, Percent, Frequency, Frequency Distributions
  • Measures of Central Tendency – Mean, Median, Mode
  • Measures of Dispersion or Variation – Range, Variance, Standard Deviation
  • Measures of Position – Percentile, Quartiles

Real World Applications
In this article, please explain how the article applies to the real world, your major, your current job, or your future career goal.
Analysis
In this section, analyze the reasons why the author or authors of the article chose to use the various types of data shared in the article
Conclusion
You should have at least one source, which is the article that you are presenting. *You do not have to use additional sources for your paper. If you decided to use them, you must follow-up SWS guidelines.         In addition to the article you chose, you can use your textbook or any article or book that supports your ideas. Why should you use outside sources? The first reason is that our papers will be more persuasive if we’re using reliable, authoritative information, and we want to remind our reader that we didn’t just make stuff up.  Using authoritative sources creates an authoritative paper.
The second reason is that we want to avoid plagiarism penalties.  Plagiarism can get us kicked out of school, and we’re here to get a degree, so we want to remain enrolled.  Plagiarism can be avoided by simply letting your reader know where you found your information.  For instance, if I tell you Bill Atkinson sold HyperCard to Apple for $100,000 dollars, I may be making it up.  If I instead tell you Levy (2011, p. 15) reminds us that HyperCard was sold to Apple for $100,000 dollars by Bill Atkinson, you’ll be able to use my sources list and look it up to help determine whether you want to believe me.
If it’s on your source list page, it needs to be referred to in your paper.  If you’ve referred to it in your paper, it needs to be on your list of sources.
So there you have it.  Use the SWS throughout the paper.  List your references.  Refer to those references in your paper. And use this paper as a template if you like.
 
 
Source List
Steven Levi. 2011.  In the Plex: How Google Thinks, Works, and Shapes Our Lives. Book on Amazon.com
Strayer Writing Standards. Fall 2018. Strayer University.
 

Statistics homework help

 

  1. Hearsay is a statement that offers evidence that proves the truth of the matter in a statement this is besides any statements made by declarant during testifying at trial (Hail, 2014). Hearsay evidence may be deemed inadmissible in a criminal proceeding if a statute or rule does not prove otherwise. For example if Joey is on trial and his friend Brian stands outside the court room stating exactly how Joey is guilty this is hearsay. This evidence would be secondhand and deemed inadmissible which means it serves no use to the trial or court whether this information is true or false. Another form of inadmissible hearsay would be a witness stating her testimony and someone from outside of the court room stating a testimony. This would be inadmissible whether the information is true or false due to them not being an actual witness to the case.

 

  1. Hearsay is a statement that the declarant does not make while testifying at the current trial or hearing; and the party offers evidence to prove the truth of the matter asserted in the statement (Hails, 2018). The rule against using hearsay evidence is to prevent out-of-court, second-hand statements from being used as evidence at trial, given their potential unreliability (FindLaw’s Team, 2019). Hearsay evidence may be deemed inadmissible. For example, a couple in Jane’s job is going through a divorce. Jane heard a rumor from her coworkers that Joe was unfaithful to his wife but did not have evidence that Joe was unfaithful to his wife. Jane did not observe Joe cheating, nor did Joe tell Jane he was cheating, therefore not having direct knowledge of the affair. Jane would not be able to testify during the divorce proceeding about Joe being unfaithful. Another example, Angel is a witness for a murder trial. Being the first witness, Angel testifies that Liz told him that she saw the defendant kill the case’s victim. Liz did not testify at the trial. The statement that Angel made was to show that the defendant killed the victim. It would be considered inadmissible hearsay evidence.

 

  1. Hearsay is when a  witness is reciting an out-of-court statement to prove the truth of the issue asserted. For example, a law enforcement officer can be called to stand to verify what the witness said during the interrogation. Hearsay evidence may be inadmissible in a criminal proceeding for many reasons. The first reason being if the witness clearly shows signs that they are mentally or emotionally unstable to make a statement. This is inadmissible because it is not reliable that the statement the witness gives is valid. The second reason is if the witness changes their alibi or the sequence of events when the crime occurred. If the witness keeps changing the story it is not reliable, it just proves that the witness is a liar.

 

  1. Hearsay is a statement which is made outside of the courtroom, brought up in an attempt to prove its assertion. For example, if Johnny testifies in a court of law that he heard his friend Logan tell him that he witnessed a murder carried out by the defendant, but the Logan is not at the trial, this statement is considered hearsay. Because the statement being discussed is made by someone from outside of a courtroom. Another example would be a similar situation in which Johnny testifies the same as he did the first time, but Logan is actually able to testify at the trials. In this situation, the hearsay is admissible.

 

  1. Hearsay is information received from other people that one cannot adequately confirm. From a legal standpoint, it is testimony from a witness under oath who is reciting an out-of-court statement which is being offered to prove the truth of the matter asserted. In most courts, hearsay evidence is inadmissible unless an exception applies.

For example, to prove that Tom was in town, the attorney asks a witness, “What did Susan tell you about Tom being in town?” Since the witness’s answer will rely on an out-of-court statement that Susan made, if Susan is unavailable for cross examination, the answer is hearsay. Note, however, that if the attorney asking the same question is not trying to prove the truth of the assertion about Tom being in town but the fact that Susan said the specific words, it may be acceptable.  If you’re facing a criminal trial, there may be several pieces of evidence that the government is relying on for their case. However, that doesn’t mean that the evidence is admissible in court. A skilled criminal defense attorney can challenge questionable evidence, such as hearsay statements, and help you prepare your strongest defense.
 
 
 
 
 
 
 
 
 
 
 
Assignment 1: Descriptive Statistics
 
Author’s Name
 
Strayer University
 
MAT300
 
Date
 
 
Assignment 1: Descriptive Statistics
 
Introduction
 
Begin your first paragraph here.  Be sure to indent each new paragraph. Your introduction should include the name of your article. Please remember that the article you choose, must be published during this quarter. You should include the title and topic of the article in the introduction and a brief overview of the topic.
Your paper must be typed, double spaced throughout (including the references page), using Arial, Calibri Courier, Times New Roman font (size 10-, 11-, or 12), with one-inch margins on all sides (Strayer Writing Standards, 2018).  For citations and references, please follow Strayer Writing Standards (SWS) format. There is a link within the assignment that is labeled Strayer Writing Standards. Please refer to that document before you begin writing your paper. Check with your professor for any additional instructions.
You must include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. This is already set up for you in the template, so just enter your name where it says Author’s Name and enter the appropriate date. The cover page and the reference page are not included in the required assignment page length. The paper should be 2-3 pages without the cover page and reference page, so that means 4-5 pages total with the cover page and reference page.
Summary
You can share the summary of the article you chose in this section.
Descriptive Statistics
In this section, please explain how the article uses descriptive statistics.  The article should use one of the following categories of descriptive statistics:

  • Measures of Frequency – Counting Rules, Percent, Frequency, Frequency Distributions
  • Measures of Central Tendency – Mean, Median, Mode
  • Measures of Dispersion or Variation – Range, Variance, Standard Deviation
  • Measures of Position – Percentile, Quartiles

Real World Applications
In this article, please explain how the article applies to the real world, your major, your current job, or your future career goal.
Analysis
In this section, analyze the reasons why the author or authors of the article chose to use the various types of data shared in the article
Conclusion
You should have at least one source, which is the article that you are presenting. *You do not have to use additional sources for your paper. If you decided to use them, you must follow-up SWS guidelines.         In addition to the article you chose, you can use your textbook or any article or book that supports your ideas. Why should you use outside sources? The first reason is that our papers will be more persuasive if we’re using reliable, authoritative information, and we want to remind our reader that we didn’t just make stuff up.  Using authoritative sources creates an authoritative paper.
The second reason is that we want to avoid plagiarism penalties.  Plagiarism can get us kicked out of school, and we’re here to get a degree, so we want to remain enrolled.  Plagiarism can be avoided by simply letting your reader know where you found your information.  For instance, if I tell you Bill Atkinson sold HyperCard to Apple for $100,000 dollars, I may be making it up.  If I instead tell you Levy (2011, p. 15) reminds us that HyperCard was sold to Apple for $100,000 dollars by Bill Atkinson, you’ll be able to use my sources list and look it up to help determine whether you want to believe me.
If it’s on your source list page, it needs to be referred to in your paper.  If you’ve referred to it in your paper, it needs to be on your list of sources.
So there you have it.  Use the SWS throughout the paper.  List your references.  Refer to those references in your paper. And use this paper as a template if you like.
 
 
Source List
Steven Levi. 2011.  In the Plex: How Google Thinks, Works, and Shapes Our Lives. Book on Amazon.com
Strayer Writing Standards. Fall 2018. Strayer University.
 

Probability homework help

IE 3301 PROJECT
Fall 2020
Due Wednesday, December 2 by 11:59pm via Canvas
 
 
Project submission is individual and should not be shared with other classmates. Any form of copying and pasting from other sources and projects will be reported to the UT Arlington Office of Student Conduct.
 
Aim: The overall aim of these projects is to analyze real-world data.  The specific objectives are:
 

  1. To sample two sets of data from the real-world.
  2. To summarize each set of data statistically.
  3. To perform statistical chi-square tests on each set of data.
  4. To describe the above steps, data, and results in a report.

 
On the cover of each Project Part report, please transcribe the following statement:
 
“I _________________ did not give or receive any assistance on this project, and the report submitted is wholly my own.”
 
Write your name in the blank and sign below it. You may use an electronic signature, such as Adobe Sign.
 
Tasks for Part 1
 
Data Collection: Students will collect two sets of data from the real world. Set 1 will be collected from a large number of observations (at least 100) for a continuous random variable from a population that is suspected to be Normally distributed. Examples of such data include the body weight of adult males, the circumferences of oranges, the extension length of rubber bands at the point at which they burst, etc. Set 2 will be the inter-arrival time of a sequence of 100 or more events.  First, record the actual clock time (to the nearest second, e.g. 2:43:18pm) of each of at least 100 consecutive events, such as the actual time that a customer enters the post office. Then, determine the interval between occurrences by taking the difference between successive event times.  Consequently, Set 2 will comprise of at least 99 inter-arrival times. You may use ‘second’ as a unit of time.
 
Descriptive Statistics: For both Sets 1 and 2, use software to do the following:

  • Calculate the sample mean and sample standard deviation.
  • Calculate the quartiles Q1, Q2, and Q3.
  • Construct a box-and-whisker plot.
  • Construct a frequency table.
  • Construct a frequency histogram.

 
Report: The project report is to be typewritten in clear English with complete sentences. Be sure to define all notations and include descriptions of all tables and figures in the text.  To improve your writing, you should consider taking your report to the UTA Writing Center. Your report should include a cover page, the following sections, and two appendices:

  1. Data. Describe the data collection process for Sets 1 and 2 with enough detail that the reader could replicate the process.  Appendices I and II should include tables of your raw data for Sets 1 and 2, respectively.  The raw data for Set 2 should consist of the recorded actual clock times.
  2. Descriptive Statistics: Include and explain your descriptive statistics analysis. Interpret the results of the analysis using your data application topic.  Does Set 1 appear to follow a Normal Distribution?  Does Set 2 appear to follow an Exponential Distribution?

 
 
Tasks for Part II
 
Chi-Square Goodness-of-Fit Test: Using a Chi-Square Goodness of Fit Test with a significance level of 0.05, test the hypothesis that Set 1 is sampled from a Normal Distribution with a population mean equal to the sample mean and a population standard deviation equal to the sample standard deviation. Similarly, test the hypothesis with a significance level of 0.05 that Set 2 is sampled from an Exponential Distribution with a population mean equal to the sample mean. For each test, start with the data classes from your histogram and merge them to ensure each class has a sufficient number of observations. Then, for each data class, calculate the following:

  • Numbers of observations in the data.
  • Class probability.
  • Class expected value.
  • Chi-square component values.

Finally, for each test, calculate the chi-square value, describe the degrees of freedom, and explain your conclusion.
 
EXAMPLE SETUP

Class Observed Frequency (oi) Class Probability Expected Frequency (ei) c2 Class Component
X ≤ 2 Count observations based on your collected data. Calculate using the assumed probability distribution. For each class, take its probability and multiply by n.
2 < X ≤ 7
7 < X ≤ 12
X > 12
Total n 1.0 n c2 statistic

 
Report: The project report is to be typewritten in clear English with complete sentences. Be sure to define all notations and include descriptions of all tables and figures in the text.  To improve your writing, you should consider taking your report to the UTA Writing Center. Your report should include a cover page and the following additional section:
Goodness-of-Fit Tests: Describe the chi-square tests with tables for the calculated values and clearly stated conclusions.  Show the Excel formulas for your table calculations in an Appendix.

Statistics homework help

The description states that your report may “be no longer than four pages in total…”. For simplicity (and legibility), please use either Times New Roman, Calibri or Arial font with a  minimum font size of 11 and have a minimum 1.5 spacing. You will submit either a .doc or .pdf file.
In addition to the written report file, we are also requiring a separate “.do” file outlining all statistical procedures you may have used with appropriate comments. Please do not copy and paste your code into your word file.
 

Probability homework help

IE 3301 PROJECT
Fall 2020
Due Wednesday, December 2 by 11:59pm via Canvas
 
 
Project submission is individual and should not be shared with other classmates. Any form of copying and pasting from other sources and projects will be reported to the UT Arlington Office of Student Conduct.
 
Aim: The overall aim of these projects is to analyze real-world data.  The specific objectives are:
 

  1. To sample two sets of data from the real-world.
  2. To summarize each set of data statistically.
  3. To perform statistical chi-square tests on each set of data.
  4. To describe the above steps, data, and results in a report.

 
On the cover of each Project Part report, please transcribe the following statement:
 
“I _________________ did not give or receive any assistance on this project, and the report submitted is wholly my own.”
 
Write your name in the blank and sign below it. You may use an electronic signature, such as Adobe Sign.
 
Tasks for Part 1
 
Data Collection: Students will collect two sets of data from the real world. Set 1 will be collected from a large number of observations (at least 100) for a continuous random variable from a population that is suspected to be Normally distributed. Examples of such data include the body weight of adult males, the circumferences of oranges, the extension length of rubber bands at the point at which they burst, etc. Set 2 will be the inter-arrival time of a sequence of 100 or more events.  First, record the actual clock time (to the nearest second, e.g. 2:43:18pm) of each of at least 100 consecutive events, such as the actual time that a customer enters the post office. Then, determine the interval between occurrences by taking the difference between successive event times.  Consequently, Set 2 will comprise of at least 99 inter-arrival times. You may use ‘second’ as a unit of time.
 
Descriptive Statistics: For both Sets 1 and 2, use software to do the following:

  • Calculate the sample mean and sample standard deviation.
  • Calculate the quartiles Q1, Q2, and Q3.
  • Construct a box-and-whisker plot.
  • Construct a frequency table.
  • Construct a frequency histogram.

 
Report: The project report is to be typewritten in clear English with complete sentences. Be sure to define all notations and include descriptions of all tables and figures in the text.  To improve your writing, you should consider taking your report to the UTA Writing Center. Your report should include a cover page, the following sections, and two appendices:

  1. Data. Describe the data collection process for Sets 1 and 2 with enough detail that the reader could replicate the process.  Appendices I and II should include tables of your raw data for Sets 1 and 2, respectively.  The raw data for Set 2 should consist of the recorded actual clock times.
  2. Descriptive Statistics: Include and explain your descriptive statistics analysis. Interpret the results of the analysis using your data application topic.  Does Set 1 appear to follow a Normal Distribution?  Does Set 2 appear to follow an Exponential Distribution?

 
 
Tasks for Part II
 
Chi-Square Goodness-of-Fit Test: Using a Chi-Square Goodness of Fit Test with a significance level of 0.05, test the hypothesis that Set 1 is sampled from a Normal Distribution with a population mean equal to the sample mean and a population standard deviation equal to the sample standard deviation. Similarly, test the hypothesis with a significance level of 0.05 that Set 2 is sampled from an Exponential Distribution with a population mean equal to the sample mean. For each test, start with the data classes from your histogram and merge them to ensure each class has a sufficient number of observations. Then, for each data class, calculate the following:

  • Numbers of observations in the data.
  • Class probability.
  • Class expected value.
  • Chi-square component values.

Finally, for each test, calculate the chi-square value, describe the degrees of freedom, and explain your conclusion.
 
EXAMPLE SETUP

Class Observed Frequency (oi) Class Probability Expected Frequency (ei) c2 Class Component
X ≤ 2 Count observations based on your collected data. Calculate using the assumed probability distribution. For each class, take its probability and multiply by n.
2 < X ≤ 7
7 < X ≤ 12
X > 12
Total n 1.0 n c2 statistic

 
Report: The project report is to be typewritten in clear English with complete sentences. Be sure to define all notations and include descriptions of all tables and figures in the text.  To improve your writing, you should consider taking your report to the UTA Writing Center. Your report should include a cover page and the following additional section:
Goodness-of-Fit Tests: Describe the chi-square tests with tables for the calculated values and clearly stated conclusions.  Show the Excel formulas for your table calculations in an Appendix.