Solution-Point estimate for the population mean

Point estimate for the population mean

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Reference no: EM131069194

The heights of young adult females in the Unites States are said to have a population standard deviation of sigma = 2.6 inches. A sample was taken of N = 85 young adult females at BYU-I and the mean computed to be X bar = 65.4 inches.

What is the point estimate for the population mean? ______
What is the margin of error for a 95% confidence interval of the population mean? ______
What is the lower bound of the 95% confidence interval for the mean height? ______
What is the upper bound of the 95% confidence interval for the mean height? ______
What is the margin of error for a 90% confidence interval of the population mean? ______
Suppose a new study is being planned. What sample size would be required to obtain a 95% confidence interval with a margin of error of 0.25 inches? ______

Reference no: EM131069194

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Point estimate for the population mean : The heights of young adult females in the Unites States are said to have a population standard deviation of sigma = 2.6 inches. A sample was taken of N = 85 young adult females at BYU-I and the mean computed to be X bar = 65.4 inches.

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Point estimate for the population mean

Reference no: EM131069194

Reference no: EM131069194

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