The Bureau of Labor Statistics provides compensation information on and services for various positions.As of May 2008,

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The Bureau of Labor Statistics provides compensation information on and services for various positions.As of May 2008, the national average salary for an RN (registered nurse) was $65,130. Suppose the standard deviation is $9385. Find the following for the mean of a random sample of 100 such nurses.
a. The probability that the mean of the sample is less than $62,500
b. The probability that the sample mean is between $64,000 and $67,500
c. The probability that the sample mean is greater than $66,000
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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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