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Test the company claim

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Reference no: EM132438689

Problem: In contract negotiations a company claims that a new incentive scheme has resulted in average weekly earnings of at least $400 for all customer service workers. A union representative takes a random sample of 15 workers and finds that their weekly earnings have an average of $381.35 and a standard deviation of $48.60. Assume a normal distribution.

Required:

Question 1: Test the company's claim

Question 2: If the same sample results had been obtained from a random sample of 50 employees, could the company's claim be rejected at a lower significance level than that used in part (a)?

Reference no: EM132438689

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