Question: Consider the soil absorption data in Exercise 12-2. (a) Find a 95% confidence interval on the regression coefficient B1. (b) Find a 95% confidence interval

Consider the soil absorption data in Exercise 12-2.
(a) Find a 95% confidence interval on the regression coefficient B1.
(b) Find a 95% confidence interval on mean soil absorption index when x1 = 200 and x2 = 50.
(c) Find a 95% prediction interval on the soil absorption index when x1 = 200 and x2 = 50.

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