The Los Angeles County Metropolitan Transportation Authority has set a bus mechanical reliability g…
Автор: Robin Hart
Загружено: 2025-11-05
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The Los Angeles County Metropolitan Transportation Authority has set a bus mechanical reliability goal of 3,013 bus miles. Bus mechanical reliability is measured specifically as the number of bus miles between mechanical road calls. Suppose a sample of 64 buses resulted in a sample mean of 3,295 bus miles and a sample standard deviation of 825 bus miles.Is there evidence that the population mean bus miles is greater than 3,013 bus miles? Use ?=0.05 level of significance.What is the test statistic? What is the p-value? What is the critical value?round to 4 decimal places What is your conclusion using ? = 0.05?. Give the answer please
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