For samples of the specified size from the population described, find the mean and standard deviation of the sam mean x. 6) The mean and the standard deviation of the sampled population are, respectively, 125.4 and 24.1. 6) n = 49 Solve the problem. 7) Based on a sample of 30 randomly selected years, a 90% confidence interval for the mean 7) annual precipitation in one city is from 40.3 inches to 43.7 inches. Find the margin of error. Find the requested confidence interval. 8) A survey revealed the amount of pocket money held by each student in a sample of students from Statistics 205. The amounts (in dollars) are 5.50, 10.20, 3.15, 6.08, 4.85, 4.80, 4.70, 8.52, 7.90, 6.10, 3.50, 5.40, 7.10, 9.60, 6.20, and 4.28. Assuming o = 2.00, find the 99.7% confidence interval for the population mean. 8)

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For samples of the specified size from the population described, find the mean and standard deviation of the sample
mean x.
6) The mean and the standard deviation of the sampled population are, respectively, 125.4
and 24.1.
6)
n = 49
Solve the problem.
7) Based on a sample of 30 randomly selected years, a 90% confidence interval for the mean
7)
annual precipitation in one city is from 40.3 inches to 43.7 inches. Find the margin of error.
Inval
Find the requested confidence interval.
8) A survey revealed the amount of pocket money held by each student in a sample of
students from Statistics 205. The amounts (in dollars) are 5.50, 10.20, 3.15, 6.08, 4.85, 4.80,
4.70, 8.52, 7.90, 6.10, 3.50, 5.40, 7.10, 9.60, 6.20, and 4.28. Assuming o = 2.00, find the 99.7%
confidence interval for the population mean.
8)
Transcribed Image Text:For samples of the specified size from the population described, find the mean and standard deviation of the sample mean x. 6) The mean and the standard deviation of the sampled population are, respectively, 125.4 and 24.1. 6) n = 49 Solve the problem. 7) Based on a sample of 30 randomly selected years, a 90% confidence interval for the mean 7) annual precipitation in one city is from 40.3 inches to 43.7 inches. Find the margin of error. Inval Find the requested confidence interval. 8) A survey revealed the amount of pocket money held by each student in a sample of students from Statistics 205. The amounts (in dollars) are 5.50, 10.20, 3.15, 6.08, 4.85, 4.80, 4.70, 8.52, 7.90, 6.10, 3.50, 5.40, 7.10, 9.60, 6.20, and 4.28. Assuming o = 2.00, find the 99.7% confidence interval for the population mean. 8)
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