A wholesaler has recently developed a computerized sales invoicing system. Prior to implementing this system, a manual system was used. The distribution of the number of errors per invoice for the manual system is as follows: Errors per Invoice 1 2 3 More Than 3 Percentage of Invoices 84% 7% 4% 3% 2% After implementation of the computerized system, a random sample of 500 invoices gives the following error distribution: Errors per Invoice Number of Invoices More Than 3 480 7 8 2 3 pi Ei fi (f - E) ^ 2/E 8.5714 22.4000 7.2000 11.2667 0.84 420 480 0.07 35 7 0.04 20 8 0.03 15 2. 0.02 10 3 4.9000 Chi-Square 54.33810 p-value 0.0000001096 (a) Show that it is appropriate to carry out a chi-square test using these data. Each expected value is 2

A wholesaler has recently developed a computerized sales invoicing system. Prior to implementing this system, a manual system was used. The distribution of the number of errors per invoice for the manual system is as follows: Errors per Invoice 1 2 3 More Than 3 Percentage of Invoices 84% 7% 4% 3% 2% After implementation of the computerized system, a random sample of 500 invoices gives the following error distribution: Errors per Invoice Number of Invoices More Than 3 480 7 8 2 3 pi Ei fi (f - E) ^ 2/E 8.5714 22.4000 7.2000 11.2667 0.84 420 480 0.07 35 7 0.04 20 8 0.03 15 2. 0.02 10 3 4.9000 Chi-Square 54.33810 p-value 0.0000001096 (a) Show that it is appropriate to carry out a chi-square test using these data. Each expected value is 2

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I need help with #2, part F.
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The director of library services at a college did a survey of types of books (by subject) in the circulation library. Then she used library records to take a random sample of 888 books checked out last term and classified the books in the sample by subject. The results are shown below. Subject Area Percent of Books on Subject in CirculationLibrary on This Subject Number of Books inSample on This Subject Business 32% 247 Humanities 25% 209 Natural Science 20% 222 Social Science 15% 127 All other subjects 8% 83 Using a 5% level of significance, test the claim that the subject distribution of books in the library fits the distribution of books checked out by students. (a) What is the level of significance?State the null and alternate hypotheses. H0: The distributions are the same.H1: The distributions are different.H0: The distributions are different.H1: The distributions are different. H0: The distributions are the same.H1: The distributions are the same.H0: The…
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I only need Part D.
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Please Help me ... Note: a=5 , b=9