True mean and confidence level

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Reference no: EM13105280

A nursing school wants to estimate the true mean annual income of its alumni. It randomly samples 120 of its alumni. The mean annual income was $58,700 with a standard deviation of $1,500. Find a 95% confidence interval for the true mean annual income of the nursing school alumni. Write a statement about the confidence level and the interval you find.

Reference no: EM13105280

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