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The mean number of words per minute (WPM) typed by a speed typist is 131 131 with a standard deviation of 15 15 WPM. What

The mean number of words per minute (WPM) typed by a speed typist is 131

131 with a standard deviation of 15

15 WPM.

What is the probability that the sample mean would be greater than128

128WPM if76

76speed typists are randomly selected? Round your answer to four decimal places.

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