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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
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Phoniex University
Oct-2001 - Nov-2016
11.41 Use the data from Exercise 11.25 and the following output to answer the following questions.

a. Estimate the mean time to run 10 km for athletes having a treadmill time of 11 minutes.
b. Place a 95% confidence interval on the mean time to run 10 km for athletes having a treadmill time of 11 minutes.
Exercise 11.25
11.25 Athletes are constantly seeking measures of the degree of their cardiovascular fitness prior to a major race. Athletes want to know when their training is at a level which will produce a peak performance. One such measure of fitness is the time to exhaustion from running on a treadmill at a specified angle and speed. The important question is then “Does this measure of cardiovascular fitness translate into performance in a 10-km running race?” Twenty experienced distance runners who professed to be at top condition were evaluated on the treadmill and then had their times recorded in a 10-km race. The data are given here.



a. Refer to the output. Does a linear model seem appropriate?
b. From the output, obtain the estimated linear regression model ![]()
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