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 standard deviation that is known. Compare the results.
Homework Answers
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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 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 35.5 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 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 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 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 8 people, the mean commute time to work was 33.5 minutes...
In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7.4 minutes. A 98% confidence interval using thet-distribution was calculated to be (25.7,41.3). After researching commute times to work, it was found that the population standard deviation is 8.6 minutes. Find the margin of error and construct a 98% confidence interval using the standard normal distribution with the appropriate calculations for a standard deviation that is known. Compare the...
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 7.3 minutes. A 95% confidence interval using the t-distribution was calculated to be (28.4.40.6). After researching commute times to work, it was found that the population standard deviation is 9.4 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...
In a random sample of 2626 people, the mean commute time to work was 30.330.3 minutes...
In a random sample of 2626 people, the mean commute time to work was 30.330.3 minutes and the standard deviation was 7.37.3 minutes. Assume the population is normally distributed and use a t-distribution to construct a 9595% confidence interval for the population mean muμ. What is the margin of error of muμ? Interpret the results. The confidence interval for the population mean muμ 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 33.5 minutes...
In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7 4 minutes A 90% confidence interval using the t-distribution was calculated to be (28.5,38.5). 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 90% confidence interval using the standard normal distribution with the appropriate calculations for a standard deviation that is...
In a random sample of 8 people, the mean commute time to work was 34.5 minutes and the standard deviation was 7.3 minutes. A 95% confidence interval using the t-distribution was calculated to be (28.4.40.6). After researching commute times to work, it was found that the population standard deviation is 9.4 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...
In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7 4 minutes A 90% confidence interval using the t-distribution was calculated to be (28.5,38.5). 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 90% confidence interval using the standard normal distribution with the appropriate calculations for a standard deviation that is...
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