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A simple random sample of 70 items from a population with = 8 resulted in a...

A simple random sample of 70 items from a population with = 8 resulted in a sample mean of 34.

If required, round your answers to two decimal places.

a. Provide a 90% confidence interval for the population mean.
to

b. Provide a 95% confidence interval for the population mean.
to

c. Provide a 99% confidence interval for the population mean.

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