Question: please answer A simple random sample of size n = 20 is drawn from a population that is normally distributed. The sample mean is found

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A simple random sample of size n = 20 is drawn from a population that is normally distributed. The sample mean is found to be x = 54 and the sample standard deviation is found to be s = 15. Construct a 90% confidence interval about the population mean. The lower bound is The upper bound is (Round to two decimal places as needed.)

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