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A marketing research analyst collects data for a random sample of 100 customers out of the 400 who purchased a particular "coupon special". The 100 customers spent an average of N25 in the store with a standard deviation of N6. The marketing manager had claimed that the average purchase by those responding to the coupon offer would be at least N20. Can this claim be rejected at a 1 percent level of significance?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9357100

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