Câu 71: LSSMBB: Lean Six Sigma Master Black Belt
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…
Nội dung câu hỏi
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?
Các lựa chọn
Đáp án được giữ gọn theo nhãn A, B, C, D trong phần bình chọn tương tác.
- A. Drop all factors with negative coefficients.
- B. Drop factors BC and ABC and rerun the multiple linear regression. — đáp án hiện tại
- C. Drop factors B and C and rerun the multiple linear regression.
- D. Drop factors B and C and rerun the multiple linear regression.
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