A study is conducted to estimate the average difference in bus ridership for a large city during the morning and afternoon rush hours.The transit authority's analyst randomly selects nine buses because of the variety of routes they represent. On a given day the numberof riders on each bus is counted at 7:45 A.M. and at 4:45 P.M., with the following results.BusMorningAfternoon14741514534442432550466444175047855514949Use the data to compute a 90% confidence interval to estimate the population average difference. Assume ridership is normallydistributed.37 44424325504664441750478555194949Use the data to compute a 90% confidence interval to estimate the population average difference. Assume ridership is normallydistributed.Appendix A Statistical Tables(Round the intermediate values to 3 decimal places, e.g. 1.254. Round your answers to 3 decimal places, e.g. 1.254.)

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Answered: A study is conducted to estimate the…

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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The success of an airline depends heavily on its ability to provide a pleasant customer experience. One dimension of customer service on which airines compete is on-time arrival. The file LateFlights contains a sample of data from delayed fights showing the number of minutes each delayed fight was late for two different airlines, Deita and Southwest. Click on the datafile logo to reference the data. DATA file Delta Southwest Delta Southwest Delta Southwest Delta Southwest Delta 36 30 34 38 119 120 63 37 35 67 114 53 102 55 8 87 68 100 43 50 86 74 17 66 87 35 40 34 64 41 53 30 86 33 57 61 7. 46 52 26 70 62 75 54 80 a. Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. H1= population mean minutes late for delayed Deita flights Ha= population mean minutes late for delayed Southwest flights Ho: H- 2 Select your answer H.: -a -Select your answer b. What is the sample mean number of minutes…
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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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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% 259 Humanities 25% 223 Natural Science 20% 213 Social Science 15% 126 All other subjects 8% 67 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 different.H1: The distributions are the same.H0: The distributions are the same.H1: The distributions are the same. H0: The distributions are different.H1: The distributions are different.H0: The…

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