A simple random sample with n = 52 provided a sample mean of 28.5 and a sample

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A simple random sample with n = 52 provided a sample mean of 28.5 and a sample standard deviation of 4.4.

(a) Develop a 90% confidence interval for the population mean.

(b) Develop a 95% confidence interval for the population mean.

(d) What happens to the margin of error and the confidence interval as the confidence level is increased?

Posted Date: Nov 08, 2021 04:51 PM

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A simple random sample with n = 52 provided a sample mean of 28.5 and a sample

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