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In a random sample of 60 computers, the mean repair cost was $150 and assume that the population standard deviation is $36. Construct a

In a random sample of 60 computers, the mean repair cost was $150 and assume that the population standard deviation is $36. Construct a 90% confidence interval for the population mean. OA. ($537,$654) OB. ($141,$159) OC. ($138,$162) OD. ($142,$158)

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