Question: Using the data in Exercise 2.1 and only a calculator (show your work) compute (a) The predicted value of y for x0 4 (b)

Using the data in Exercise 2.1 and only a calculator (show your work) compute

(a) The predicted value of y for x0 ¼ 4

(b) The seðfÞ corresponding to part (a)

(c) A 95% prediction interval for y given x0 ¼ 4

(d) A 95% prediction interval for y given x ¼ x. Compare the width of this interval to the one computed in part (c)

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