A what is the least squares prediction equation b find

Question

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 H₀: ß₁ = 0 against the alternative hypothesis H_a:ß₁ ≠0. Test using a = .05. Draw the appropriate conclusions.

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