Confidence interval for the mean number of microwaves

Reference no: EM1393879

A manufacturer of microwaves gathers information on microwave sales from a random sample of 50 stores in a large retail chain. In the sample, the mean number of microwaves sold per store last week was 19, with standard deviation 2.

What is the 95% confidence interval for the mean number of microwaves sold at a retail store in the chain last week?

Reference no: EM1393879

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