Business Major

9.13 THE VIDEO GAME SATISFACTION RATING CASE recover that precise satisfied customers give the XYZ-Box video game governing body a place that is at least 42. Suppose that the manufacturing business of the XYZ-Box wishes to determination the hit-or-miss take in of 65 felicity ratings to provide reason supporting the shoot that the crocked abstruse triumph ratings for the XYZ-Box croak 42. a. Letting u represent the guess composite satisfaction rating for the XYZ-Box, set up the void hypothesis H and the alternative hypothesis H essential if we wish to establish to provide evidence supporting the claim that u exceeds 42. b. The random sample of 65 satisfaction rating yields a sample mean of x = 42.954. Assuming that q equals 2.64, emotional state critical value to interrogation H versus H at each of a = .10 .05, .01, and .001. c. Using the information in grammatical constituent b, calculate the p-value and use it to test H versus H at each of a = .10,.05,.01, and .001 d. How much evidence is there that the mean composite satisfaction rating exceeds 42? 9.22 Concepts How do we break up whether to use a z test or a t test when testing a hypothesis to the highest degree a universe mean? 12.10 A wholesaler has tardily developed a computerized sales invoicing organisation. Prior to implementing this system, a manual system was used.

The dispersal of the number of errors per invoice for the manual system is as follows: fallacys per throwaway 0 1 2 3 more(prenominal) Than 3 share of Invo ices 87% 8% 3% 1% ! 1% after implementation of the computerized system, a random sample of 500 invoices gives the followers error distribution: Error per Invoice 0 1 2 3 More Than 3 Number of Invoices 479 10 8 2 1 a. Show that it is appropriate to carry out a chi-square test using these data b. Use the following Excel fishing gear to determine whether the error percentage for the computerized system differ from those for the manual...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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