EBK THE BASIC PRACTICE OF STATISTICS
EBK THE BASIC PRACTICE OF STATISTICS
8th Edition
ISBN: 8220106747841
Author: Moore
Publisher: YUZU
Question
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Chapter 26, Problem 26.46E

(a)

To determine

To construct: The residual plot of residuals against appraised value.

To check: Whether the pattern agrees with the conditions of linear relationship and constant standard deviation needed for regression inference.

(b)

To determine

To construct: The stemplot for residuals.

To check: Whether there are strong deviations from normality that would prevent regression inference.

(c)

To determine

To construct: The residual plot of residuals against month.

To check: Whether the positive and negative residuals randomly scattered when the conditions for regression inference are satisfied or not.

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