The data from exercise 1 follow. xi 1 2 3 4 5 yi 3 7 5 11 14 a. Use equation to estimate the standard deviation of when x = 4. b. Use equation to develop a 95% confidence interval estimate of the...

The data from exercise 1 follow.

a. Use equation to estimate the standard deviation of whenx= 4.

b. Use equation to develop a 95% confidence interval estimate of the expected value ofywhenx= 4

.

c. Use equation         to estimate the standard deviation of an individual value ofywhenx= 4.

d. Use equation to develop a 95% prediction interval forywhenx= 4.