# Question

Refer to the data of Exercise 11.22.

a. Estimate σ2e.

b. Estimate the standard error of β1.

c. Place a 95% confidence interval on β1.

d. Test the hypothesis that there is a linear relationship between the amount of time needed to run a 10- km race and the time to exhaustion on a treadmill. Use a = .05.

In exercise

a. Estimate σ2e.

b. Estimate the standard error of β1.

c. Place a 95% confidence interval on β1.

d. Test the hypothesis that there is a linear relationship between the amount of time needed to run a 10- km race and the time to exhaustion on a treadmill. Use a = .05.

In exercise

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