Given here is the computer output for a multiple regression model that was developed to predict the value of Y from four independent variables, X1, X2, X3, and X4.
Intercept X1 X2 X3 X4
b 253.609 -5.3835 -7.2994 -4.8918 1.5216
s(b) 29.8368 3.86934 3.272 2.353 1.8704
t 8.49985 -1.3913 -2.2309 -2.079 0.8135
ANOVA table:
Source SS df MS F FCritical
Regn.
Error 4579.68
Total
a. Given that R2 = 0.31, complete the ANOVA table. State conclusion about the regression relationship.
b. Testing Hypothesis about the coefficients b3, b4, using alpha = 0.05.