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Problem:

An advertising company wishes to estimate the mean household income for all single working professionals who own a foreign automobile.

Question 1) If the advertising company wants a 90% confidence interval estimate with a margin of error of Â±$2,500, what sample size is needed if the population standard deviation is known to be $27,500?

Solve the given numerical problem and show all work.

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Operation Management, Management Studies

Category:- Operation Management
Reference No.:- M91149185

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