Question: In fitting a least squares line to n = 5 data points, the following quantities were computed: SSxx = 31, x = 2, SSyy =

In fitting a least squares line to n = 5 data points, the following quantities were computed:

SSxx = 31, x = 2, SSyy = 24, y = 6, SSxy = 26

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 the mean value of y when xp = 4.1.

f. Find a 90% prediction interval for y when xp = 2.7.

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