Eighteen readers took a speed reading course The file P09 58 xlsx contains
Eighteen readers took a speed-reading course. The file P09_58.xlsx contains the number of words that they could read before and after the course. Test the alternative hypothesis at the 5% significance level that reading speeds have increased, on average, as a result of the course. Explain your answer in terms of the p-value. Do you need to assume that reading speeds (before and after) are normally distributed? Why or why not?

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