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Problem 4. In a random sample of 13 microwave ovens, the main repair cost was $80.00, and the standard deviation was $13.50. Construct a 95%

Problem 4. In a random sample of 13 microwave ovens, the main repair cost was $80.00, and the standard deviation was $13.50. Construct a 95% confidence interval for the population mean. (5 points

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