Exhibit 13-9
In a regression analysis involving 25 observations, the following estimated regression equation was developed.
$\hat { Y }$ =10 - 18X1+3X2+14X3
Also, the following standard errors and the sum of squares were obtained.
Sb₁ = 3 Sb2 = 6 Sb3 = 7
SST = 4,800 SSE = 1,296
-Refer to Exhibit 13-9. If you want to determine whether or not the coefficients of the independent variables are significant, the critical value of t statistic at ? = 0.05 is
A) 2.080
B) 2.060
C) 2.064
D) 1.96

Question

Exhibit 13-9
In a regression analysis involving 25 observations, the following estimated regression equation was developed.
 $\hat { Y }$ =10 - 18X1+3X2+14X3
Also, the following standard errors and the sum of squares were obtained.
Sb₁ = 3 Sb2 = 6 Sb3 = 7
SST = 4,800 SSE = 1,296
-Refer to Exhibit 13-9. If you want to determine whether or not the coefficients of the independent variables are significant, the critical value of t statistic at ? = 0.05 is
A) 2.080
B) 2.060
C) 2.064
D) 1.96

Quizplus · Accepted Answer

The critical value of the t statistic at α = 0.05 for a two-tailed test with degrees of freedom (n-k-1) = 25-3-1 = 21 is approximately 2.080.

Exhibit 13-9 in a Regression Analysis Involving 25 Observations, the Following

Exhibit 13-9
in a Regression Analysis Involving 25 Observations, the Following