Source of variation Due to regression (ESS) Due to residual (RSS) Total (TSS) Sum of squares (SS) 65,965 66,042 d.f. and | | 14 Mean sum of squares (MSS) - 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 adjusted R²?_ e. What is the F-score in the test of the hypothesis that X2 and X3 have zero influence on Y. f. From the preceding information, can you determine the individual contribution of X2 and X3 toward Y?

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