Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
9th Edition
ISBN: 9781319013387
Author: David S. Moore, George P. McCabe, Bruce A. Craig
Publisher: W. H. Freeman
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Chapter 10.1, Problem 7E

(a)

To determine

To explain: The wrong statement with reason

(a)

Expert Solution
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Answer to Problem 7E

Solution: The parameters of the simple linear regression model are β0,β1, and ε. The wrong statement is that parameters of the simple linear regression model are b0,b1 and s.

Explanation of Solution

The statement is wrong because b0,b1, and s are the estimates of the parameters of the simple linear regression model. The parameters of simple linear regression model are β0,β1, and ε.

(b)

To determine

To explain: The wrong statement with reason

(b)

Expert Solution
Check Mark

Answer to Problem 7E

Solution: It should be to test H0:β1=0, use t test.

Explanation of Solution

The statement is wrong because b1 is the estimate of β1, which is the slope of regression equation. So, use t test to test H0:β1=0.

(c)

To determine

To explain: The wrong statement with reason

(c)

Expert Solution
Check Mark

Answer to Problem 7E

Solution: The wrong statement is that for a value of the variable x, the confidence interval for the mean response will be wider than the prediction interval.

Explanation of Solution

The statement is wrong because in the case of future observation model, prediction interval is wider than mean response interval.

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