A regression was performed on a sample of 16 observations.The estimated equation is
.The standard errors for the coefficients are Sb1 = 4.2,Sb2 = 5.6,and Sb3 = 2.8.For this model,SST = 3809.6 and SSR = 3285.4.
a.Compute the appropriate t ratios.
b.Test for the significance of 1, 2 and 3at the 5% level of significance.
c.Do you think that any of the variables should be dropped from the model? Explain.
d.Compute R2 and Ra2.Interpret R2.
e.Test the significance of the relationship among the variables at the 5% level of significance.
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