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Which variables is/are included in the best set of the model using stepwise regression? a. x1 b. x2 c. x3 d. none

Which variables is/are included in the best set of the model using stepwise regression? a. x1 b. x2 c. x3 d. none

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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28. Which variables is/are included in the best set of the model using stepwise regression?

a. x1

b. x2

c. x3

d. none

Stepwise Selection of Terms Candidate terms: x1, x2, x3 -----Step 1---- Coef Constant -23.62 x3 21.514 x1 x2 S R-sq R-sq(adj) Mallows' Cp a to enter = 0.15, a to remove = 0.15 P 0.000 3.94030 99.09% 99.04% 7.08 -----Step 2---- Coef 66.1 20.121 -5.36 P 0.000 0.103 3.74177 99.23% 99.13% 5.66 ----Step 3---- Coef 47.2 18.24 -9.74 0.428 P 0.000 0.018 0.074 3.47963 99.37% 99.25% 4.00
Transcribed Image Text:Stepwise Selection of Terms Candidate terms: x1, x2, x3 -----Step 1---- Coef Constant -23.62 x3 21.514 x1 x2 S R-sq R-sq(adj) Mallows' Cp a to enter = 0.15, a to remove = 0.15 P 0.000 3.94030 99.09% 99.04% 7.08 -----Step 2---- Coef 66.1 20.121 -5.36 P 0.000 0.103 3.74177 99.23% 99.13% 5.66 ----Step 3---- Coef 47.2 18.24 -9.74 0.428 P 0.000 0.018 0.074 3.47963 99.37% 99.25% 4.00
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