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State the null and the alternative hypotheses for test

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Reference no: EM132855100

A service counter manager wishes to ensure that an average of 16 seconds to serve a customer. In order to analyse the efficiency of the service process, he takes a random sample of 56 customers. The mean service time of the sample is 15.8 seconds. Assume that the population standard deviation is 0.8 seconds.

(a) State the null and the alternative hypotheses for the test.

(b) Use the p-value approach to test the manager's concern at ??=0.05.

(c) Confirm your result in (ii) by using the critical value approach.

(d) State the recommendation that the manager can present to the company.

Reference no: EM132855100

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