Mathematics, 12.04.2021 09:50, wavy419

A certain vehicle emission inspection station advertises that the wait time for customers is less than 10 minutes. A local resident wants to test this claim and collects a random sample of 64 wait times for customers at the testing station. He finds that the sample mean is 9.49 minutes, with a standard deviation of 4.5 minutes. Does the sample evidence support the inspection station's claim? Use the α=0.05 level of significance to test the advertised claim that the wait time is less than 10 minutes. What are the hypotheses for this test?
H0:
muμ

equals=
Your answer is correct. You answered 10.10 minutes
H1:
muμ

less than<
Your answer is correct. You answered 10.10 minutes
(Type an integer or a decimal.)
What is the value of the test statistic?

▼
z 0z0
t 0t0
=

(Round to two decimal places as needed.)

Answers: 3

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A certain vehicle emission inspection station advertises that the wait time for customers is less th...