Confidence interval for average number of year of experience

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A management consulting agency needs to estimate the average number of years of experience of executives in a given branch of management.

A random sample of 28 executives gives x‾= 6.7 years and s = 2.4 years.

Give a 99% confidence interval for the average number of years of experience for all executives in this branch.

Reference no: EM131372494

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