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Test the manager claim at level of significance

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Reference no: EM132501808

A phone industry manager thinks that the customer monthly cell phone bills have increased and now average more than $52.The company wishes to test this claim. Suppose a sample is taken with the following results Sample size =64, sample mean = $53.1 per month. Past company records indicate that the standard deviation is about $10.Test the manager's claim at 10% level of significance.

Reference no: EM132501808

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