Calculate a 95% confidence interval for the mean health


The increasing cost of health care is an important issue today. Suppose that a random sample of 23 small companies that offer paid health insurance as a benefit was selected. The mean health insurance cost per worker per month was $132, and the standard deviation was $32. Calculate a 95% confidence interval for the mean health cost per worker per month for all small companies.

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Basic Statistics: Calculate a 95% confidence interval for the mean health
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