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A state meat inspector in Iowa has been given assignment of estimating mean net weight of packages of ground chuck labeled "3 pounds." Of course, he realizes that weights can't be precisely 3 pounds. A sample of 36 packages reveals mean weight to be 3.01 pounds, with the standard deviation of 0.03 pounds.

a. Find out the estimated population mean?

b. Find out a 95 percent confidence interval for the population mean

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