Question:

In the context of a study on the relationship between exercise intensity and energy consumption, the percentage of maximal heart rate reserve (X) and the percentage of maximal oxygen consumption (Y) were measured for 26 male adults during steady states of exercise on a treadmill.  Use the data given in HeartRateOxygCons.txt and R to complete the following questions.

1. Get the ANOVA table for this linear regression. Using that output, answer the following:

1. The total sum of squares (SST)
2. The multiple R-squared value
3. What are the hypotheses for the F-test, DF, p-value, decision, and conclusion.

B. Get the summary table for this linear regression. Using that output answer the following:

1. ;Using either ANOVA or summary output, what is the sample size of this study? Explain how you determined this.
2. What is the regression equation (i.e. the fitted regression line)? Be sure to include the variable names.
3. What is the multiple R-squared value?  Does this match your answer in part ‘A’ above?
4. Provide an interpretation of R-squared as it relates to this problem.
5. Is there evidence that percentage of heart rate reserve is a significant linear predictor of the percentage of oxygen consumption for this population? Include the hypotheses, test statistic, DF, p-value, decision, and conclusion.

C. Provide an interpretation of the slope as it relates to this data.

D. Find and interpret a 95% confidence interval for the estimated expected change in oxygen consumption for a unit increase in heart rate reserve.

E. Provide a copy of your R code used to answer these questions.

Price: $2.99

Solution: The downloadable solution consists of 4 pages
Deliverable: Word Document