The data from exercise 2 follow. X i 3 12 6 20 14 y i 55 40 55 10 15 a. Estimate the standard deviation of when x = 8. b. Develop a 95% confidence interval estimate of the expected value of y when x =...

The data from exercise 2 follow.

a. Estimate the standard deviation of whenx= 8.

b. Develop a 95% confidence interval estimate of the expected value ofywhenx= 8.

c. Estimate the standard deviation of an individual value ofywhenx= 8.

d. Develop a 95% prediction interval forywhenx= 8.