Statistics homework help

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All posts 100% original work. no plagiarism.
Recall the car data set you identified in Forum 2 excel.  You will want to calculate the average for your data set.  (Be sure you use the numbers without the supercar outlier)  Once you have the average count how many of your data points fall below the average. You will take that number and divide it by 10.  This will be your p or “success” in your problem.  Once you have p, calculate q.
If you were to find another random sample of 10 cars based on the same data, what is the probability that exactly 4 of them will fall below the average?  Make sure you interpret your results.
If you were to find another random sample of 10 cars based on the same data, what is the probability that fewer than 5 of them will fall below the average?  Make sure you interpret your results.
If you were to find another random sample of 10 cars based on the same data, what is the probability that more than 6 of them will fall below the average?  Make sure you interpret your results.
If you were to find another random sample of 10 cars based on the same data, what is the probability that at least 4 of them will fall below the average?  Make sure you interpret your results.
I encourage you to review the Week 3 Binomial probabilities PDF at the bottom of the discussion.  This will give you a step by step example to follow and show you how to find probabilities using Excel.
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    Forum2.xlsx
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    Week3Poissonprobabilities.pdf
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    Week3Binomialprobabilities.pdf

Statistics homework help

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A Psychology Professor is interested in understanding the variability in final exam grades for his 100-level freshman Psychology Statistics class.  He hypothesizes that class absences would be negatively correlated with final exam grades, and that the students’ pre-college levels of math proficiency would be positively correlated with final exam grades. He also hypothesizes that the relationship between absences and final grades would be moderated by levels of Math proficiency.  The professor collects data for 35 students. Based on Placement Test Scores, obtained during pre-semester orientation/registration, 12 students had low (Developmental level) Math skills.  Thirteen students were proficient in basic 9th grade Arithmetic and Algebra only. And, 10 students had advanced Math skills at the Calculus level.  Math levels were recorded as 1 = Low Math Skills; 2 = Moderate Skills, and 3 = High math skills.  At the end of the semester, and for each student, the number of class absences was recorded, as were their final exam grades. Using the data appearing in the attached Week 3 Moderator “Statistics Grades.sav” SPSS data file, conduct a multiple regression analysis to examine the direct and interactive (moderator) effects of absences and Math level on final exam grades.  Summarize the results using correct APA style. Be sure to include the appropriate Tables and Graphs. Please use my sample summary for moderation as a guide for your summary. As you’ll see, my sample summary shows you what statistics to present and summarize in your papers, and how to present them in APA style format.
Assignment Requirements.
1-Describe the sample, the goals of the study, and the variables employed to conduct the study
2-Describe the analysis strategy – How will you analyze the data.
3-State the Null and Alternative Hypotheses
4-Conduct the multiple regression analysis in which grades is the DV (outcome), Math Levels, and Absences, as well as their centered interaction, are the IV (predictors).
5-Present and summarize the results for the Multiple Regression Analysis – including the effects for both IVs as well as the interaction.
6-Conduct, present, and summarize the results for the simple slopes analyses for each level of Math proficiency.  So, using the split file procedure in SPSS you must conduct 3 simple regression analysis in which the variable Grades is the DV (outcome) and Absences is the IV (predictor).
7-Create the appropriate table of results for the multiple regression analysis (you must refer to this table within the summary).
8-Create the appropriate table for the simple slopes analyses.
9-Create a simple slopes plot showing the regression of grades on absences for each Math level. You must refer to this figure within the summary.
10-Submit the summary as an MS-Word file; and please submit the SPSS output in a separate file.  That way I can see the analyses that you ran.
11-Please carefully read my sample summary (SAMPLE SUMMARY IS ATTACHED) and model your summary after it.  Also, you must read chapter 15 in the Warner text.
12-Please note that this analysis and summary must be your own original work, you may not share you work with any classmates.  I created the practice data and sample summary as an in-class problem, and I encourage you with work together on the practice problem. But not on the graded assignment
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    Week3ModeratorStatisticsGradesdata.sav
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    APASummaryforModerationviaSPSS2.doc
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Mathematics homework help

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Project Overview

You will complete a Calculations and Report Document for this project. In part one, you will represent problems as mathematical expressions that you will then solve. In part two, you will explain what your calculations mean and how they inform your thinking about the problems. The ability to solve problems with math will help you with everything from managing your finances to baking new recipes.

Competency

In this project, you will master the following competency:

  • Use basic quantitative methods of problem solving

Scenario

You work at All-Store, a large general store that sells everything from groceries and office supplies to medicine, toys, and books. Unfortunately, the company’s profits have been down for the last six months because of competition, specifically from other local businesses and online vendors.

Jill Oliviera, All-Store’s general manager, has decided to rethink the store’s business strategies. One of her new ideas is to focus the business on just a few departments. This way, All-Store can specialize in those areas rather than continuing to support all of the current offerings.
Due to declining sales and the upcoming changes, Jill is worried about the business’s finances. She’s given you access to several company files and asked you to prepare a report. Your report should cover different situations that the business may face in the coming months.

Directions

Your manager is looking for your recommendations for how the store could best respond to: declining sales, reducing staffing, and purchasing the building.
To do this, download and fill out the Calculations and Report Document in the “What to Submit” section.
As you complete part one of this document, break down each of the three problems individually. When representing problems as expressions, don’t be afraid to try a few equations for each step to see what works. Use information and data from the company files in the “Supporting Materials” section to answer the questions.
In part two, give your recommendations to your manager: what do you think the company should do about declining sales, reducing staffing, and purchasing the building? Be sure to support your recommendations with quantitative evidence. Then, explain how you used mathematical expressions to solve these problems.
When you have completed both parts of the Calculations and Report Document, you can submit it as your deliverable.

What to Submit

Every project has a deliverable or deliverables, which are the files that must be submitted before your project can be assessed. For this project, you must submit the following:
Calculations and Report Document
Download and complete the Calculations and Report Document. Make sure that you have answered all of the questions in part one and part two.

Supporting Materials

The following resources will help support your work on the project:
Company Files

Reading and Writing Support

Writing Guide
Use the tutorials and resources in the Writing Guide document if you need help with the writing aspects of this project.

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    MAT-20013All-StoreProfitandLossStatement.xlsx
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    MAT-20013All-StoreCalculationsandReport.docx

Mathematics homework help

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I need someone to take the exam by TODAY 10 CST there’s only about 20-26 questions on the exam ..  the work also have to be shown

Mathematics homework help

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On Saturday, Ashley planned to make pancakes for breakfast. To make 1 ½ batches of pancakes, she needs 2 1/3   cups of flour. There are 5 ¼ cups of flour in the kitchen. How much flour was left after she made the pancakes?
answer in QTIPS format attached
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    QTIPS1.pptx

Statistics homework help

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nitial Post Instructions
If a regression analysis was to be completed on body mass index (BMI), what could be an independent variable in that analysis? Why? If we could, what other independent variables should be included in the analysis? What statistic(s) would show the value of that regression in understanding BMI?
Alternatively, find an article that uses regression analysis to study a medical concern. In that study, what was the dependent variable and what were the independent variable(s)? Further, how would you use this study to highlight the difference between correlations and causation?

Statistics homework help

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Provide (2) 200 words response with a minimum of 1 APA references for RESPONSES 1 AND 2 below. Response provided should further discuss the subject or provide more insight. To further understand the response, below is the discussion post that’s discusses the responses. 100% original work and not plagiarized. Must meet deadline and follow instructions. Please review each excel document attached for each responses to provide more insight on the reponses.
RESPONSE 1:
This week’s forum will be about last week’s data.  My list of vehicles from last week consisted of coupes, SUV and sedans. I broke down the data mean, median, and standard deviation with statistics from the first 10 vehicles, then added the 11th supercar statistics to the additional data. After looking at both statistics, I found that the mean of the first 10 vehicles is $56,813.70 and the median is $49,949.00.  With this data and the descriptive statistics, I would know the price range of the vehicles I would want. Looking at this data, buying a vehicle in these ranges, seems reasonable.
After adding the three-million-dollar super car to the second data set, the mean and SD increased significantly. The new mean is now $324,376.09, and the new SD is now, 887958.1742. The median did not increase dramatically like the other statistics. The new median is now $50,998.00, I was very surprised that the median did not increase as much.
-Watlington
RESPONSE 2:
When choosing my list of vehicles I decided to do the best rated vehicles under twenty thousand dollars. By doing this, the list that I filled out has vehicles for mostly the same price. This made my mean and median quite similar to the average price of most of the vehicles listed in my table. The lowest price for one of my vehicles was around sixteen thousand and the highest being twenty thousand. I did not plan to keep the prices relatively similar but it ended up being that way due to the criteria I had chosen.
As for my standard deviation, it was quite lower than most lists may be as it is reliable with a lower deviation because most of the vehicles have similar prices. With such a tight grouping of vehicle prices, once I added in the supercar, my mean and standard deviation changed the most. My mean increased from $18,478 to $216,798 and my standard deviation from 1371 to 6557755. I was not too surprised by this change because I knew that my vehicles ranged in price quite closely so that when I added in the two million dollar sports car, I expected to see a huge change.
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    Response2Exceldoc.xlsx

Mathematics homework help

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I need someone to take the exam by TODAY 10 CST there’s only about 20-26 questions on the exam ..  the work also have to be shown

Operations Management homework help

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Describe the leadership style or styles (transformational, transactional, visionary, servant, etc.) communicated by the manager in your current organization or of a health care team for which you wish to work. Discuss how that style of leadership would lend itself to change in organizational development. Provide supporting references for your rationale.