In analyzing some data, you first try multiple linear regression with all the factors and with interactions (example: Factor A times Factor B is interaction AB)
You obtain a multiple regression equation of the form:
Response = 15 + .13 A - .30 B - .02 C - .00001 AB + .0000004 AC - .00000013 BC +.000000 ABC.
The p-values for most of the factors and interactions are between 0 and .05, except interactions BC and ABC, which have p-values between .4 and .9.
Which of the following approaches might be appropriate to simplify the equation?

Question

Examsnet · Accepted Answer

Correct Answer is :  Drop factors BC and ABC and rerun the multiple linear regression.

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