Suppose you used MINITAB to fit the model to n = 15 data points and you obtained the printout shown below.

a. What is the least squares prediction equation?

b. Find R2 and interpret its value.

c. Is there sufficient evidence to indicate that the model is useful for predicting y? Conduct an F-test using a = .05.

d. Test the null hypothesis H,: P, = 0 against the alternative hypothesis H,: P, + 0. Test using a = .05.

Draw the appropriate conclusions.

e. Find the standard deviation of the regression model and interpret it.