A road averages 2,115 vehicles per day with a standard deviation of 485 vehicles per day. A traffic counter was used on this road on 38 days that were randomly selected.   a. What is the probability that the sample mean is less than 2,000 vehicles per​ day? b. What is the probability that the sample mean is more than 2,200 vehicles per​ day? c. What is the probability that the sample mean is between 2,100 and 2,300 vehicles per​ day?

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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.