Question: Consider the electric power consumption data in Exercise 12-6. (a) Find 95% confidence intervals on 1, 2, 3, and 4. (b) Find a 95% confidence

Consider the electric power consumption data in Exercise 12-6.

(a) Find 95% confidence intervals on 1, 2, 3, and 4.

(b) Find a 95% confidence interval on the mean of Y when x1  75, x2  24, x3  90, and x4  98.

(c) Find a 95% prediction interval on the power consumption when x1  75, x2  24, x3  90, and x4  98.

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