Based on an analysis of sample data, an article proposed the pdf f(x) = 0.35e−0.35(x − 1) when x ≥ 1 as a model for the distribution of X = time (sec) spent at the median line. (Round your answers to three decimal places.) (a) What is the probability that waiting time is at most 6 sec? More than 6 sec? (b) What is the probability that waiting time is between 3 and 7 sec?

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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.