Exercise 11-2 presented data on roadway surface temperature x and pavement deflection y. Find a 99% confidence interval on each of the following: (a) Slope (b) Intercept (c) Mean deflection when...

Exercise 11-2 presented data on roadway surface temperature x and pavement deflection y. Find a 99% confidence interval on each of the following:
(a) Slope (b) Intercept
(c) Mean deflection when temperature x = 85oF

(d) Find a 99% prediction interval on pavement deflection when the temperature is 90oF