Question: 11.8 With reference to Exercise 11.6, find (a) a 90% confidence interval for the average number of classes attended each day by a student present

11.8 With reference to Exercise 11.6, find

(a) a 90% confidence interval for the average number of classes attended each day by a student present for 15 days;

(b) 90% limits of prediction for the number of classes attended each day by a student present for 15 days.

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