The output shown was obtained from Minitab. (a) The least-squares regression equation is = 1.3962x +

The output shown was obtained from Minitab.

(a) The least-squares regression equation is ŷ = 1.3962x + 12.396. What is the predicted value of y at x = 10? (b) What is the mean of y at x = 10?
(c) The standard error, se, is 2.167. What is an estimate of the standard deviation of y at x = 10?
(d) If the requirements for inference on the least-squares regression model are satisfied, what is the distribution of y at x = 10?