Probability related to smokers or non-smokers


Who misses work more often at the ABC Company: Smokers or non-smokers? Test at .05 significance level.

Smokers: Average number of days absent = 15; standard deviation = 5.0; n = 50

Non-Smokers: Average number of days absent = 9; standard deviation = 4.0; n = 40

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Basic Statistics: Probability related to smokers or non-smokers
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