Question: A three-variable regression gave the following results: (12 marks) Source of variation Sum of squares (SS) d.f. MSS Due to regression (ESS) 65,965 Due to

A three-variable regression gave the following results: (12 marks) Source of variation Sum of squares (SS) d.f. MSS Due to regression (ESS) 65,965 Due to residual (RSS) Total 66,042 14 1. Fill in the missing cells 2. Find R 3. Find adjusted R 4. Test the hypothesis that X2 and X3 have zero impact on Y. 5. Which test do you use and why? 6. From the preceding information, can you determine the individual contribution of X2 and X3 toward Y and why?

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