In a random sample of 28 people, the mean commute time to work was 32.7 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to...


In a random sample of 28 people, the mean commute time to work was 32.7 minutes and the standard deviation was 7.2 minutes. Assume the population is normally<br>distributed and use a t-distribution to construct a 99% confidence interval for the population mean p. What is the margin of error of p? Interpret the results.<br>The confidence interval for the population mean p is<br>(Round to one decimal place as needed.)<br>The margin of error of u is<br>(Round to one decimal place as needed.)<br>Interpret the results.<br>O A. It can be said that 99% of people have a commute time between the bounds of the confidence interval.<br>B. With 99% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.<br>O C. Ifa large sample of people are taken approximately 99% of them will have commute times between the bounds of the confidence interval.<br>O D. With 99% confidence, it can be said that the commute time is between the bounds of the confidence interval.<br>

Extracted text: In a random sample of 28 people, the mean commute time to work was 32.7 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 99% confidence interval for the population mean p. What is the margin of error of p? Interpret the results. The confidence interval for the population mean p is (Round to one decimal place as needed.) The margin of error of u is (Round to one decimal place as needed.) Interpret the results. O A. It can be said that 99% of people have a commute time between the bounds of the confidence interval. B. With 99% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. O C. Ifa large sample of people are taken approximately 99% of them will have commute times between the bounds of the confidence interval. O D. With 99% confidence, it can be said that the commute time is between the bounds of the confidence interval.

Jun 09, 2022
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