Mathematics, 26.11.2019 01:31 faithburleson13
In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7.2 minutes. a 95% confidence interval using the t-distribution was calculated to be (27.5 comma 39.5 ). after researching commute times to work, it was found that the population standard deviation is 9.5 minutes. find the margin of error and construct a 95% confidence interval using the standard normal distribution with the appropriate calculations for a standard deviation that is known. compare the results.
Answers: 3
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In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard devi...
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