Made In / Hecho en Fait en CZECH REPUBLIC REPUBLICA CHECA REPUR QUE TCHE C shelf: BUS LAW X Connect * *Course Hero x . ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%252F#/activity/qu... ded Assignment-7 (CH-9) Due Nov. 6 i Saved Help Save & Exit Submit Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to question 5 Most air travellers now use e-tickets. Electronic ticketing allows passengers to not worry about a paper ticket, and it costs the airline companies less to handle than paper ticketing. However, in recent times, the airlines have received complaints from passengers regarding their e-tickets, particularly when connecting flights and a change of airlines were involved. To investigate the problem, an independent agency contacted a random sample of 20 airports and collected information on the number of complaints the airport had ints with e-tickets for the month of March. The information is reported below: 11 18 11 10 18 16 17 13 11 14 11 18 15 At the 0.01 significance level, can the agency conclude that the mean number of complaints per airport is less than 15 per month? a. What assumption is necessary before conducting a test of hypothesis? The population of complaints follows a normal probability distribution. b. Not available in Connect. c. Conduct a test of hypothesis and interpret the results. Ho : U 2 15; H1 : u Type here to search O @ 9 4:29 PM 11/3/202 X Home End Insert F1 F2 53 F5 F6 E7 F10 F11 F12 @ S 8 2 3 4 5 16 7 8 9 OMade In / Metho en Fait en CZECH REPUBLIC REPUBLICA CHECA PIQUE TCHEQUE
pe here to search 9 F1 X o.+ F2 F3 F4 Home End Insert F5 F6 F7 F8 F10 F11 F12Made In/Hecho en Fait en CZECH REPUBLIC REPUBLICA CHECA kshelf: BUS LAW X Connect X Course Hero x + ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%252F#/activity/qu... ded Assignment-7 (CH-9) Due Nov. 6 Saved Help Save & Exit Submit Check my work 6 The Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time during a week. A sample of 18 watches provided the following gains (+) or losses (-) in seconds per week. -0.77 -0.18 -0.85 -0.77 0. 79 -0. 75 0.16 0.39 -0.84 ints -0.52 -0.43 -0.18 -0.85 -0.28 -0.52 -0.51 -0.83 0.56 Ho: H = 0 eBook References Is it reasonable to conclude that the mean gain or loss in time for the watches is 0? Use the 0.10 significance level. a. At a level of 0.10 significance, we reject Ho: H = 0. (Negative answer should be indicated by a minus sign. Round the final answers to 3 decimal places.) If t 1, reject Ho b. What is the value of the test statistic? (Round the final answer to 3 decimal places.) Value of the test statistic = c. What is your decision regarding Ho? MC Graw Hill ype here to search 11/3 X Home End Insert F5 F6 F7 F9 F10 F11 F12Made In / Hecho en CZECH REPUBLIC REPUBLICA CHECA REPUBLIQUE TCH , reject Ho. b. What is the value of the test statistic? (Round the final answer to 3 decimal places.) Value of the test statistic = c. What is your decision regarding Ho? Reject HO: H = 0. d. What is the p-value? The p-value is 0.001 and 0.01 aw e here to search 9 X Home End Insert
