A social researcher reported that a random sample of size n=30 produced a sample mean of 12.59% and a sample standard deviation of 2.79%.in Use this information to calculate a 90% confidence interval for the national average for the "percent of people in poverty". Provide the upper and lower limits of the confidence interval and the margin of error. (Round the limits to two decimal places.)

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7.
A social researcher reported that a random sample of size n=30 produced a sample mean of 12.59% and a sample standard
deviation of 2.79%.
Use this information to calculate a 90% confidence interval for the national average for the "percent of people in poverty".
Provide the upper and lower limits of the confidence interval and the margin of error. (Round the limits to two decimal
places.)
D
00% confidence interval found in number 7.
Transcribed Image Text:7. A social researcher reported that a random sample of size n=30 produced a sample mean of 12.59% and a sample standard deviation of 2.79%. Use this information to calculate a 90% confidence interval for the national average for the "percent of people in poverty". Provide the upper and lower limits of the confidence interval and the margin of error. (Round the limits to two decimal places.) D 00% confidence interval found in number 7.
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