14, 14, 16, 12, 12, 14, 13, 16, 15, 14, 12, 15, 15, 14, 13, 13,12, 13, 10,13 Electronic ticketing allow passenger to not worry about a paper ticket, and it cost the airline companies less to handle than paper ticketing. however in recent time the airline have receive complaints from passengers regarding their eticket, particularly when cannecting flights and a change of airlines were involved. To investigates a problem an independent watchdog agency contacts a random sample of 20 airport and collected information on the number of complains the airport had with etickets for the month of March. At the 0.05 significance level, can the watchdog agency concludes the mean number of complains per airport is less than 15 per month. conduct a test of hypothesis and interprets the results. What is the decision rule and computes the value of so test statistics.
14, 14, 16, 12, 12, 14, 13, 16, 15, 14, 12, 15, 15, 14, 13, 13,12, 13, 10,13
Electronic ticketing allow passenger to not worry about a paper ticket, and it cost the airline companies less to handle than paper ticketing. however in recent time the airline have receive complaints from passengers regarding their eticket, particularly when cannecting flights and a change of airlines were involved. To investigates a problem an independent watchdog agency contacts a random sample of 20 airport and collected information on the number of complains the airport had with etickets for the month of March. At the 0.05 significance level, can the watchdog agency concludes the mean number of complains per airport is less than 15 per month. conduct a test of hypothesis and interprets the results. What is the decision rule and computes the value of so test statistics.
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