Given are five observations for two variables, x and y. (Round your answers to two decimal places.) xi XXXXXXXXXX yi XXXXXXXXXX A. Estimate the standard deviation of ŷ* when x = 7. B. Develop a 95%...

Given are five observations for two variables, x and y. (Round your answers to two decimal places.)

xi 3 12 6 20 14

yi 50 45 55 15 15

A.

Estimate the standard deviation of

ŷ*

when

x = 7.

B.
Develop a 95% confidence interval for the expected value ofy when

x = 7.

C.

Estimate the standard deviation of an individual value ofy when

x = 7.

D. Develop a 95% prediction interval fory
when x = 7.

___________ to _______________.