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Suppose that textbook weights are normally distributed. You measure 50 textbooks' weights, and find they have a mean weight of 75 ounces. Assume the population

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Suppose that textbook weights are normally distributed. You measure 50 textbooks' weights, and find they have a mean weight of 75 ounces. Assume the population standard deviation is 14.1 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight. Round answers to 2 decimal places. Select an answer Select an answer Question Help: Submit Questi wer

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