In fitting a least squares line to n 15 data points the

Question

In fitting a least squares line to n = 15 data points, the following quantities were computed: SS_xx = 55 

a. Find the least squares line.

b. Graph the least squares line.

c. Calculate SSE.

d. Calculate s².

e. Find a 90% confidence interval for ß₁. Interpret this estimate.

f. Find a 90% confidence interval for the mean value of y when x = 15.

g. Find a 90% prediction interval for y when x = 15.