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Ten Administrative Assistants Were Sent to Take a Typing Efficiency α\alpha

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Ten administrative assistants were sent to take a typing efficiency course. The following data show the typing speeds of the administrative assistants before and after the course. Ten administrative assistants were sent to take a typing efficiency course. The following data show the typing speeds of the administrative assistants before and after the course. At \alpha = 0.05, what can be concluded about the effectiveness of the course?
At α\alpha = 0.05, what can be concluded about the effectiveness of the course?

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z = -1.659...

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