Week 5 Exercises 12.48 And 12.50

Problem 12.48 In the side by side(p) regression, X = weekly pay, Y = income tax withheld, and n = 35 McDonalds employees. (a) Write the fitted regression equation. (b) theatre the degrees of freedom for a two- tailed test for slide fastener slope, and escort Appendix D to find the critical prise at ? = .05. (c) What is your conclusion about the slope? (d) Interpret the 95 plow confidence limits for the slope. (e) Verify that F = t2 for the slope. (f) In your own words, nurture the fit of this regression. a. Y = 0.0343x + 30.7963 b. Degrees of Freedom = 33, and Critical nurse = 2.035 c. The info seems to show that the slope does not equal 0. Since the p-value is greater than .05 this would delay me to reject the null hypothesis. d. 95% trustingness Interval. Upper suck = 0.058 Lower secure = 0.010 e. t2 = 2.8892 t2 = 8.34632 Yes, it fits. f. There is not a rightfully good fit to this regression becaexerci sing the majority of the variation of X cannot be accounted for by Y. This leads me to the conclusion that there are new(prenominal) factors and this is not a good linear fit. Problem 12.50 In the following regression, X = total assets ($ billions), Y = total tax tax income ($ billions), and n = 64 large banks. (a) Write the fitted regression equation.

(b) conk out out the degrees of freedom for a two- tailed test for zero slope, and use Appendix D to find the critical value at ? = .05. (c) What is your conclusion about the slope? (d) Interpret the 95 per centum confidence limits for the slope. (e) Verify that F = t2 for the slope . (f) In your own words, exert up wind th! e fit of this regression. a. Y = 0.0452X + 6.5763 b. Degrees of Freedom = 63 and Critical Value = 5.291 c. The slope does equal 0, and the p-value is greater than .05 so we are able-bodied to accept the bull hypothesis. d. 95% Confidence Interval. Upper Limit = 0.056 Lower Limit = 0.034 e. t2 = 8.1832 t2 = 66.961 Yes, it fits. f. This regression fits closely because variation...If you want to get a full essay, order it on our website: BestEssayCheap.com

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