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QUESTION 4 8 points Save Answer In a random sample of eight people, the mean commute...
In a random sample of 88 people, the mean commute time to work was 35.5 minutes...
In a random sample of 88 people, the mean commute time to work was 35.5 minutes and the standard deviation was 7.2 minutes. A 90% confidence interval using the t-distribution was calculated to be left parenthesis 30.7 comma 40.3 right parenthesis(30.7,40.3). After researching commute times to work, it was found that the population standard deviation is 8.9 minutes. Find the margin of error and construct a 90% confidence interval using the standard normal distribution with the appropriate calculations for a...
In a random sample of 8 people, the mean commute time to work was 34.5 minutes...
In a random sample of 8 people, the mean commute time to work was 34.5 minutes and the standard deviation was 7.4 minutes. A 90% confidence interval using the t-distribution was calculated to be left parenthesis 29.5 comma 39.5 right parenthesis(29.5,39.5). After researching commute times to work, it was found that the population standard deviation is 9.3minutes. Find the margin of error and construct a 90% confidence interval using the standard normal distribution with the appropriate calculations for a standard...
In a random sample of 25 people, the mean commute time to work was 30.2 minutes...
In a random sample of 25 people, the mean commute time to work was 30.2 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean mu. What is the margin of error of mu? Interpret the results. The confidence interval for the population mean mu is left parenthesis nothing comma nothing right parenthesis . (Round to one decimal place as needed.) The...
In a random sample of 8 people, the mean commute time to work was 36.5 minutes...
In a random sample of 8 people, the mean commute time to work was 36.5 minutes and the standard deviation was 7.3 minutes. A 98% confidence interval using the t-distribution was calculated to be left parenthesis 28.8 comma 44.2 right parenthesis. After researching commute times to work, it was found that the population standard deviation is 8.5 minutes. Find the margin of error and construct a 98% confidence interval using the standard normal distribution with the appropriate calculations for a...
In a random sample of 8 people, the mean commute time to work was 36.5 minutes...
In a random sample of 8 people, the mean commute time to work was 36.5 minutes and the standard deviation was 7.3 minutes. A 98% confidence interval using the t-distribution was calculated to be left parenthesis 28.8 comma 44.2 right parenthesis. After researching commute times to work, it was found that the population standard deviation is 8.5 minutes. Find the margin of error and construct a 98% confidence interval using the standard normal distribution with the appropriate calculations for a...
in a random sample of 8 people, the mean commute time to work was 36.5 minutes...
in a random sample of 8 people, the mean commute time to work was 36.5 minutes and the standard deviation was 7.4 minutes. A 90% confidence interval using the t-distribution was calculated to be (31.5,41.5). After researching commute times to work, it was found that the population standard deviation is 9.3 minutes. find the margin of error and construct a 90% confidence interval using normal distribution with the appropriate calculations for a standard deviation that is known. compare the results....
In a random sample of 19 people, the mean commute time to work was 31.7 minutes...
In a random sample of 19 people, the mean commute time to work was 31.7 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean What is the margin of error of μ? Interpret the results. The confidence interval for the population mean μ is (,)
In a random sample of 88 people, the mean commute time to work was 36.536.5 minutes...
In a random sample of 88 people, the mean commute time to work was 36.536.5 minutes and the standard deviation was 7.37.3 minutes. A 9090% confidence interval using the t-distribution was calculated to be left parenthesis 31.6 comma 41.4 right parenthesis(31.6,41.4). After researching commute times to work, it was found that the population standard deviation is 9.39.3 minutes. Find the margin of error and construct a 9090% confidence interval using the standard normal distribution with the appropriate calculations for a...
In a random sample of 88 people, the mean commute time to work was 35.535.5 minutes...
In a random sample of 88 people, the mean commute time to work was 35.535.5 minutes and the standard deviation was 7.37.3 minutes. A 9898% confidence interval using the t-distribution was calculated to be left parenthesis 27.8 comma 43.2 right parenthesis(27.8,43.2). After researching commute times to work, it was found that the population standard deviation is 8.78.7 minutes. Find the margin of error and construct a 9898% confidence interval using the standard normal distribution with the appropriate calculations for a...
In a random sample of 18 people, the mean commute time to work was 31.5 minutes...
In a random sample of 18 people, the mean commute time to work was 31.5 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 95% confidence interval for the population mean muμ. What is the margin of error of muμ? Interpret the results.
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