The following table, reproduced from Exercise 13.39, provides information on the speed at takeoff (in meters per

Question:

The following table, reproduced from Exercise 13.39, provides information on the speed at takeoff (in meters per second) and distance traveled (in meters) by a random sample of 10 world-class long jumpers.

a. Find the predictive regression line of the distance traveled on the speed at takeoff.
b. Make a 98% confidence interval for B. You may use the results obtained in Exercise 13.39.
c. Test at the 1% significance level whether B is less than 1.2.