stat

Open the College Weight PDF document in the modules. Read through the document carefully and answer the following questions in your own words and in complete sentences.

1.) Briefly describe, in your own words, the main purpose of the study presented in this paper.

2.) Identify the population in this study. Be specific.

3.) What is the total sample size for the comparison between freshman and senior year. Also, describe how the data was collected.

4.) Was this an observational study or experimental study?

5.) What do FFQ and AUDIT stand for? What are possible variables measured in each? (Name one variable for each, and whether it is quantitative or qualitative)

6.) Comment on the graphics used to describe the distribution of BMI change. What are positive/negative aspects of using this graphic. Any outliers?

7.) What statistical software is mentioned that they used in this paper?

8.) On page four of the paper, they say “Although the plethora of data was a strength of the study, except for weight and height, the majority of the data are self-reported.” Discuss whether this can result in bias and explicitly mention what type of bias.