Question: A three-variable regression gave the following results: a. What is the sample size? b. What is the value of the RSS? c. What are the

A three-variable regression gave the following results:

a. What is the sample size?
b. What is the value of the RSS?
c. What are the d.f. of the ESS and RSS?
d. What is R2? And 2?
e. Test the hypothesis that X2 and X3 have zero influence on Y. Which test do you use and why?
f. From the preceding information, can you determine the individual contribution of X2 and X3 toward Y?

Sum of squares Mean sum of d. uares (MSS) Source of variation Due to regression (ESS) Due to residual (RSS Total (TSS) 65,965 66,042 14

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