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A simple random sample with n=56 provided a sample mean of 22.5 and a sample standard...

A simple random sample with n=56 provided a sample mean of 22.5 and a sample standard deviation of 4.3.

a. Develop a 90% confidence interval for the population mean (to 1 decimal).

( , )

b. Develop a 95% confidence interval for the population mean (to 1 decimal).

( , )

c. Develop a 99% confidence interval for the population mean (to 1 decimal).

( , )

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