A random sample of size 81 is drawn from a population with a standard deviation of 15. If only 18% of the time a sample mean greater than 300 is obtained, what is the mean of the population?
Round to 2 decimal places
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A random sample of size 81 is drawn from a population with a standard deviation of 15. If only 18% of the time a sample mean greater than 300 is obtained, what is the mean of the population?
Round to 2 decimal places
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