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April 20, 2014

April 20, 2014

Posted by **Samantha** on Monday, July 27, 2009 at 12:03pm.

(8.10) Employees in a large manufacturing plant worked and average of 62.0 hours of overtime last year, with a standard deviation of 15.0 hours. For a simple random sample of n=36 employees and x=the number of overtime hours worked last year, determine the z-score corresponding to each of the following sample means:

a. ȭ= 55.0 hours b. ȭ=60.0 hours

c. ȭ=65.0 hours d. ȭ= 47.0 hours

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