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mikee675
20.12.2019 •
Mathematics
Acertain vehicle emission inspection station advertises that the wait time for customers is less than 9 minutes. a local resident is skeptical and collects a random sample of 49 wait times for customers at the testing station. she finds that the sample mean is 8.31 minutes, with a standard deviation of 3.9 minutes. does the sample evidence support the resident? s skepticism? use the alpha = 0.005 level of significance to test the advertised claim. what are the correct hypotheses for this test? what is the value of the test statistic? what is the p-value? p-value = [ ] use the alpha = 0.005 level of significance to test the advertised claim. since the p-value is [ ] than alpha, [ ] the null hypothesis. there [] sufficient evidence to conclude that the mean wait time is less than 9 minutes. in other words, the evidence [ ] the resident? s skepticism.
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