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rect Question 30 A study of 22 car owners showed that their mean repair bill was $150.25 with a standard deviation $8.10. Construct a 80%

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rect Question 30 A study of 22 car owners showed that their mean repair bill was $150.25 with a standard deviation $8.10. Construct a 80% confidence interval for the population mean. Assume the population has a normal distribution. Do not include the $ in your responses. (lower bound, upper bound)

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