55. (A) If 120 scores are chosen from a normal distribution with mean 75 and standard deviation 8, how many scores x would be expected to satisfy 67 s x s 83? (B) Use a graphing calculator to generate 120 scores from the normal distribution with mean 75 and standard de- viation 8. Determine the number of scores x such that 67 s xs 83, and compare your results with the answer to part (A).

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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.