A metropolitan transportation authority has set a bus mechanical reliability goal of 3,800 bus miles. Bus...
A metropolitan transportation authority has set a bus mechanical reliability goal of 3,800 bus miles. Bus mechanical reliability 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 3,875 bus miles and a sample standard deviation of 325 bus miles.
a. Is there evidence that the population mean bus miles is more than 3,800 bus miles? (Use 0.050 level of significance.)
State the null and alternative hypotheses.
Find the test statistic for this hypothesis test.
T Stat =
The critical value(s) for the test statistic is(are)
b. Determine the p-value
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A metropolitan transportation authority has set a bus mechanical
reliability goal of 3,800 bus miles. Bus...
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