Mathematics, 15.04.2020 00:52 edsimms21111

3. In order to set rates, an insurance company is trying to estimate the number of sick days that full time workers at an auto repair shop take per year. Assume σ = 6.8 days. How large a sample must be selected if the company wants to be 98% confident that the true mean differs from the sample mean by no more than 2 days?

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