Given are five observations for two variables, x and y.

xi	1	2	3	4	5
yi	3	8	5	11	13

(d)Develop the estimated regression equation by computing the values of

b₀ and b₁ using b₁ =

(x_i x)(y_i y)

(x_i x)²

and

b₀ = y b₁x.

=

(e)Use the estimated regression equation to predict the value of y when x = 4.