Let X1, X2,..., X15 be independent identically distributed N(4.5, 0.88) random variables, with an average X. (a) Calculate P(4.2 < X < 4.9) = (Give your answer to 3 decimal places) (b) Find the value of c for which P(4.5 – c < X < 4.5+c) = 0.99. c = (Give your answer to 2 decimal 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.