The lengths of adult males' hands are normally distributed with mean 186 mm and standard deviation is 7.5 mm. Suppose that 42 individuals are randomly chosen. Round all answers to 4 where possible. b. For the group of 42, find the probability that the average hand length is more than 187. ? c. Find the first quartile for the average adult male hand length for this sample size. ? d. For part b), is the assumption that the distribution is normal necessary? Yes or no

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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.