College athletes The College Athletes data set on the book’s website comes from a study of…

College athletes The College Athletes data set on the book’s website comes from a study of University of Georgia female athletes. Using the column names from the data set, the response variable 1RM = maximum bench press has explanatory variables LBM = lean body mass (which is weight times 1 minus the proportion of body fat) and REPS70 = number of repetitions before fatigue with a 70-pound bench press. Let’s look at all the steps of a regression analysis for these data.

a. The first figure shows a scatterplot matrix. Which two plots in the figure describe the associations with 1RM as a response variable? Describe those associations.

b. Results of a multiple regression analysis are shown. Write down the prediction equation and interpret the coefficient of REPS70.

c. Report R2 and interpret its value in the context of these variables.

d. Based on the value of R2, report and interpret the multiple correlation.

e. Interpret results of the F test that 1RM is independent of these two predictors. Show how to obtain the F statistic from the mean squares in the ANOVA table.

f. Once REPS70 is in the model, does it help to have LBM as a second predictor? Answer by showing all steps of a significance test for a regression parameter.

g. Examine the histogram shown of the residuals for the multiple regression model. What does this describe, and what does it suggest?

h. Examine the plot shown of the residuals plotted against values of REPS70. What does this describe, and what does it suggest?

i. From the plot in part h, can you identify a subject whose 1RM value was considerably lower than expected based on the predictor values? Identify by indicating the approximate values of REPS70 and the standardized residual for that subject.

Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more
error: Content is protected !!