The lengths of lumber a machine cuts are normally distributed with a mean of 92 inches and a standard deviation of 0.5 inch. (a) What is the probability that a randomly selected board cut by the machine has a length greater than 92.14 inches? (b) A sample of 40 boards is randomly selected. What is the probability that their mean length is greater than 92.14 inches? (a) The probability is

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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.