In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the following estimated regression equation was developed.
= 12 - 18x1 + 4x2 + 15x3
Also, the following standard errors and the sum of squares were obtained.
sb1 = 3sb2 = 6sb3 = 7SST = 4900SSE = 1296
If we are interested in testing for the significance of the relationship among the variables (i.e., significance of the model), the critical value of F at?= .05 is
A. 2.76.
B. 4.87.
C. 3.10.
D. 3.07.
Answer: B
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