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Physics, 21.03.2020 07:01 jetblackcap

The mean number of words per minute (WPM) typed by a speed typist is 73 with a variance of 144. What is the probability that the sample mean would differ from the population mean by greater than 0.6 WPM if 77 speed typists are randomly selected? Round your answer to four decimal places.

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The mean number of words per minute (WPM) typed by a speed typist is 73 with a variance of 144. What...

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