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Amelropolitan transportation authority has set a bus mechanical reliability goal of 3,800 bus miles. Bus mechanical ireliability is measured specifically as the number of bus miles between mechanical road calls. Suppose a sample of 100 buses resulted in a sample mean of 3,850 bus miles and a sample standard deviation of 325 bus miles. Complete parts (a) and (b) belowN a. Is there evidence that the population mean bus miles is more than 3,800 bus miles? (Use a 0 10 levellof significance.) State the null and alternative hypotheses. (Type integers of decimals.)

Amelropolitan transportation authority has set a bus mechanical reliability goal of 3,800 bus miles. Bus mechanical ireliability is measured specifically as the number of bus miles between mechanical road calls. Suppose a sample of 100 buses resulted in a sample mean of 3,850 bus miles and a sample standard deviation of 325 bus miles. Complete parts (a) and (b) belowN a. Is there evidence that the population mean bus miles is more than 3,800 bus miles? (Use a 0 10 levellof significance.) State the null and alternative hypotheses. (Type integers of decimals.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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A metropolitan transportation-authority has set a bus mechanical reliability goal of 3,800 bus miles. Bus mechanical ireliability is measured specifically as the number of bus miles between mechanical road calls. Suppose a sample of100 buses resuted in a sample mean of 3,850 bus miles and a sample standard deviation of 325 bus miles. Complete parts (a) and (b) below a. Is there evidence that the population mean bus miles is more than 3,800 bus miles? (Use a 0 10 level of significance.) State the null and alternative hypotheses. 主 (Type integers or decimals.)
Transcribed Image Text:A metropolitan transportation-authority has set a bus mechanical reliability goal of 3,800 bus miles. Bus mechanical ireliability is measured specifically as the number of bus miles between mechanical road calls. Suppose a sample of100 buses resuted in a sample mean of 3,850 bus miles and a sample standard deviation of 325 bus miles. Complete parts (a) and (b) below a. Is there evidence that the population mean bus miles is more than 3,800 bus miles? (Use a 0 10 level of significance.) State the null and alternative hypotheses. 主 (Type integers or decimals.)
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