Mathematics, 27.07.2019 01:00 nathanstern21

Aresearch study shows that the yearly cost of dental claims for virginia state employees with dental care as a part of their health insurance has a distribution with a mean of $1200 and a standard deviation of $200. if a random sample of 25 virginia state employees with dental insurance is selected, what is the probability that the mean of the yearly dental claims for this sample is between $1175 and $1225?

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