Essay
A time study of a certain service task found an average time of 15 minutes,with a standard deviation of 5 minutes.These figures were based on a sample of 100 measurements.Is the sample large enough that we are 95% confident that standard time is within ±5% of its true value?
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n = 
= = 170.74 or ...View Answer
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Correct Answer:
Verified
= = 170.74 or ...View Answer
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Get Access to more Verified Answers free of charge
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