As a rule of thumb, the sampling distribution of the sample proportions can be approximated by a normal probability distribution whenever
 

A. np?5, n?30.
B. np?5 and n(1-p) ?5.
C. n 30 and (1 - p) = 0.5.
D. none of these alternatives is correct.


Answer: B

Business

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Job specification is best defined as a listing of

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