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

xi	3	12	6	20	14
yi	60	35	55	5	15

(a)Estimate the standard deviation of

*

when

x = 10.

(b)Develop a 95% confidence interval for the expected value of y when

x = 10.

to (c)Estimate the standard deviation of an individual value of y when

x = 10.

(d)Develop a 95% prediction interval for y when

x = 10.

to