1. Suppose a random sample of 50 basketball players showed the average height to be 78 inches. Also assume that the population standard deviation is 1.5 inches. (a) Find a 99% confidence interval for the population mean height. (b) Find a 95% confidence interval for the population mean height. (c) Find a 90% confidence interval for the population mean height. (d) Find an 85% confidence interval for the population mean height.

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