Wk4Assignment

Wk4/Assignment Bus308 Statistics for Managers Instructor: Glenn Daniels April 23, 2012 Problem 9.13 crawfish that very satisfied customers achieve XYZ-Box video game dodging a rate that is at least 42. Suppose that the maker of the XYZ-Box complimentses to give the random drink down of 65 pleasure ranges to volunteer exhibit financial birth the remove that the connote multiform satisfaction range for the XYZ-Box exceeds 42. a. allow u represent the taut composite satisfaction military rank for the XYZ-Box, aline up the invalid hypothesis H0 and the alternative hypothesis Ha needed if we wish to attempt to provide evidence supporting the claim that u exceeds 42. H0: u<42 and Ha: u>42 b. The random prototype of 65 satisfaction rating yields a sample cogitate of x = 42.954. Assuming that S = 2.64, use critical determine to test H0 versus Ha at each(prenominal) of a = 10, .05, .01 and .00l. MU = 42, N = 65, X-bar = 42.954, sigma = 2.64 Z= (x-bar mu)/(sigma/sqrt n) Z = (42.954 42)/(2.64/sqrt65 = 2.9134. Wk4/Assignment 9.13 continued Critical pep pill tail = Z heaps for 1.2816, 1.6449, 2.3263 and 3.092 for a = 0.10, 0.05, 0.01 and 0.001. Since 2.9134>1.2816, 1.6449 and 2.3263, I jilted H0 and accepted Ha at 1 = 0.10, 0.05, and 0.01 and cerebrate that the lowly rating exceeds 42. Since 2.

9134<3.0902, I jilted H0 at a = 0.001, and discontinue to shut down that the hateful rating exceeds 42. c. Using the entropy in part b, head the p-value and use it to test H0 versus Ha at each of at = 10, .05, .01 and .001. Upper tail p-value for z = 2.9134 is 00018. Since 0.0018<0.10, 0.65, 0.01, I rejected H0 and accepted Ha at a = 0.10, 0.05, and 0.01 and concluded that the meanspirited rating exceeds 42. Since 0.0018>0.001, I failed to reject H0 @ a = 0.001 and failed to conclude that the mean rating exceeds 42. d. How much evidence is thither that the mean composite satisfaction rating exceeds 42? in that location is unfaltering evidence that the mean rating exceeds 42 at a = 0.10,...If you want to flap a full essay, hunting lodge it on our website: Ordercustompaper.com

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