Question: The foreman in a small assembly plant wants to see

The foreman in a small assembly plant wants to see whether a training program has reduced the number of worker errors. The foreman records the weekly number of errors for a random sample of workers before the training, and again after the training. Is there sufficient evidence, at the 4% significance level, to suggest that the training led to a reduced number of worker errors?

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  • CreatedJuly 12, 2015
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