Essay
A work sampling study requires an acceptable error level of ± 10 percent and 95 percent confidence.
(a) What is the required sample size if the sample proportion busy is as large as 50 percent?
(b) What is the required sample size if the sample proportion busy is estimated to be about 20 percent?
Correct Answer:
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(a) (1.962 × .5 ×.5) / .12 = .96...View Answer
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