Question
The mean number of words per minute (WPM) typed by a speed typist is 143 with a standard deviation of 12 WPM. What is the
The mean number of words per minute (WPM) typed by a speed typist is 143 with a standard deviation of 12 WPM.
What is the probability that the sample mean would be greater than 142.2 WPM if 76 speed typists are randomly selected? Round your answer to four decimal places.
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College Algebra And Trigonometry A Unit Circle Approach,
Authors: Mark Dugopolski
5th Edition
0321908252, 9780321908254
