Below you are given a partial computer output from a multiple regression analysis based on a sample of 16 observations.
Coefficients
Standard Error
Constant12.924
4.425
x1-7.682
2.630
x245.216
12.560
Analysis of VarianceSource ofVariationDegrees ofFreedom
Sum ofSquares
MeanSquare
F
Regression4853
2426.5
Error485.3
?
We want to test whether the parameter ?1 is significant. The test statistic equals
A. -2.9.
B. 2.9.
C. 3.6.
D. -5.0.
Answer: A
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