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Which statement is NOT true for the following regression equation? Y = 0.4*X 1 +

ID: 3891234 • Letter: W

Question

Which statement is NOT true for the following regression equation?

Y = 0.4*X1 + 0.8*X2 + 0.6 +e

When x takes on value 0, the predicted Y value is 0.6

On unit change in X1 value is expected to lead to 0.4 unit change in Y value

Since 0.8 > 0.4, we can claim that the influence of X2 on Y is greater than X1

Unless the P value is given, we cannot be sure whether the regression coefficient associate with X1 (0.4) is significant or not

When x takes on value 0, the predicted Y value is 0.6

On unit change in X1 value is expected to lead to 0.4 unit change in Y value

Since 0.8 > 0.4, we can claim that the influence of X2 on Y is greater than X1

Unless the P value is given, we cannot be sure whether the regression coefficient associate with X1 (0.4) is significant or not

Explanation / Answer

Answer: A

Explanation :
B, C and D is correct.
B) One unit change in X1 expected to lead 0.4 unit change
C) influence of X2 on Y is greater than X1, BECAUSE OF REGRESSION Coeffecient
D) Unless P value is given we cannot state about significant or insignificant

A is false when x takes on value 0, because the predicted Y value is 0.6 + e


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