Statistics for Business and Economics (13th Edition)
13th Edition
ISBN: 9780134506593
Author: James T. McClave, P. George Benson, Terry Sincich
Publisher: PEARSON
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Textbook Question
Chapter 12.5, Problem 12.36LM
Suppose you fit the interaction model
y = β0 + β1x1 + β2x2 + β3x1x2 + ε
to n = 32 data points and obtain the following results:
SSyy = 479 SSE = 21
- a. Find R2 and interpret its value.
- b. Is the model adequate for predicting y? Test at α=.05.
- c. Use a graph to explain the contribution of the x1 x2 term to the model.
- d. Is there evidence that x1 and x2 interact? Test at α =.05.
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Chapter 12 Solutions
Statistics for Business and Economics (13th Edition)
Ch. 12.3 - Write a first-order model relating E(y) to a. two...Ch. 12.3 - Minitab was used to fit the model E(y) = (0 + 1x1...Ch. 12.3 - Suppose you fit the multiple regression model y =0...Ch. 12.3 - Suppose you fit the first-order multiple...Ch. 12.3 - Prob. 12.5LMCh. 12.3 - Prob. 12.6LMCh. 12.3 - Prob. 12.7LMCh. 12.3 - If the analysis of variance F-test leads to the...Ch. 12.3 - Ambiance of 5-star hotels. Although invisible and...Ch. 12.3 - Forecasting movie revenues with Twitter. Refer to...
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