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Commute times in the U.S. are heavily skewed to the right. We select a random sample...

Commute times in the U.S. are heavily skewed to the right. We select a random sample of 210 people from the 2000 U.S. Census who reported a non-zero commute time.

In this sample the mean commute time is 28.1 minutes with a standard deviation of 18.8 minutes. Can we conclude from this data that the mean commute time in the U.S. is less than half an hour? Conduct a hypothesis test at the 5% level of significance.

What is the p -value for this hypothesis test? (Round to 4 decimal places)

Math   Statistics-And-Probability   
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