Calculate a 99 confidence interval for the mean monthly

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Reference no: EM13604713

A random sample of 22 small companies (revenue of less than $10 million) that offer the benefit of paid health insiurance was taken and it was calculated that the mean health insurance cost per worker per month was $265.00, with a standard deviation of $54.00. Calculate a 99% confidence interval for the mean monthly cost per worker for all small companies offering the benefit of paid insurance. Please show steps.

Reference no: EM13604713

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