Attachment is all the questions need answered in multiple parts.

Book used :

Anderson, D. R., Sweeney, D. J., Williams, T. A., Camm, J. D., Cochran, J. L., Fry, M. J., & Ohlmann, J. W. (2016). Quantitative methods for business with CengageNOW (13th ed.). Boston, MA: Cengage Learning. ISBN-13: 9781305799257

I’m working on a statistics question and need support to help me learn.

https://docs.google.com/document/d/1yhU5_lhgylx4KyFCTxyk6FFE_UDYN4lQSFGTV2Lx_9w/edit

Final research paper, usually related to the previously submitted research proposal (but could be unrelated).

A typical paper structure would be the following — but feel free to deviate from this if it doesn’t seem to fit your research project well.

Abstract – executive (roughly 150 word) summary of the entire paper (2 marks)

I. Introduction – what is the research project about? (2 marks)

II. Motivation – why is this topic important? (2 marks)

III. Background – what background knowledge do we need to understand the research? (2 marks)

IV. Research Method – introducing research questions and methods for data collection and analysis

IV.A Research Questions – what is your research question / are your research questions? (3 marks)

IV.B Data Collection – what data did you collect (describe in enough detail that somebody else could reproduce)? (5 marks)

IV.C Data Analysis – how did you analyse this data (describe in enough detail that somebody else could reproduce)? (5 marks)

V. Findings – what did you find, i.e., what is the answer to your research question(s)? (3 marks)

VI. Discussion – how do you interpret the findings? This is where you can speculate a bit. (2 marks)

VII. Threats to Validity – what threats affect the validity of your findings? (7 marks)

VIII. Related Work – how does your research fit in with other researchers’ work? (3 marks)

IX. Conclusions – a quick summary and concluding remarks (2 marks)

X. Future Work – what should others do next based on your work? (2 marks)

References – at least 15

Context

A high school student named David Merrell did an experiment to examine if music affects the ability of rats to run a maze. The explanatory variable was exposure to music. He had three treatment groups: one group listened to heavy metal music by the group Anthrax. A second group listened to Mozart. The third group never heard music. This last group is the control group.

The response variable was the average time (in seconds) to complete three runs. Every week the rats ran the maze three times. Merrell recorded each rat’s average time for the week.

Direct controls of potential confounding variables:

• Merrell trained all of the rats to run the same maze.
• He gave all mice the same amount of food and light.
• All mice had the same approximate age and weights.
• During the treatment phase, the rats were exposed to the treatment for the same amount of time, e.g. rats heard music at 70 decibels for 10 hours a day for a month.

Results:

By the end of the month the Anthrax group was much slower at running the maze. The Mozart group was much faster. The dotplots below show average run times for the first and last week of the experiment. Each dot represents one rat. The X-value is the rat’s average run time for the week. (Each rat ran the maze 3 times each week.) The blue line is the mean run time for each treatment group.

Prompt

Merrell claims that he randomly assigned rats to treatment groups. Does the data shown in the dotplots above support his claim? Why or why not?