In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the following estimated regression equation was developed. y = 10 - 18x1 + 3x2 + 14x3 Also, the following standard errors and the sum of squares were obtained. sb1 = 3 sb2 = 6 sb3 = 7 SST = 4800 SSE = 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. 2.78.
c. 3.10.
d. 3.07.
d
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