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In a random sample of 72 female workers in a company, the average weight is 164.2 lb. with a standard deviation 3.9 lb. Obtain a

In a random sample of 72 female workers in a company, the average weight is 164.2 lb. with a standard deviation 3.9 lb. Obtain a 79% confidence interval for the mean height of all the female workers in the company.

please show your work. thank you

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