The mean number of words per minute (wpm) typed by a speed typist is 133 with a variance off 144 What is the probability that the sample mean would differ from the population mean by greater than 2.9 wpm if 90 speed typist are randomly selected? Round answer 4 places

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.