nment Chapter 9, Section 3, Exercise 055 Two intervals are given, A and B, for t

Question

nment Chapter 9, Section 3, Exercise 055 Two intervals are given, A and B, for the same value of the explanatory variable. A: 11 to 13 B: 9 to 15 (a) Which interval is the confidence interval for the mean response? Which interval is the prediction interval for the response? (b) What is the predicted value of the response variable for this value of the explanatory variable? Enter the exact answer The predicted value is exact number, no tolerance Click if you would like to Show work for this question: pan.Show.work SHOW HINT Pelicy 1 2000-2018 2phn Sons Inc All Rights Reserved, A Division of 20hn Wiey &Sonsns;

Explanation / Answer

a)

Prediction interval is always wider than confidence interval

so confidence interval is choice A 11 to 13

b) Prediction interval is choice B 9 to 15

c) Predicted value = (11+13)/2 or (9+15)/2

                                 = 24/2 or    24/2

                                 = 12

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