a. what is the probability that the sample mean is between 7.8 and 8.2 minutes? b. what is the probability that the sample mean is between 7.5 and 8 minutes? c. If you select a random sample of 100 sessions, what is the probability that the sample mean is between 7.8 and 8.2 minutes? d. Explain the difference in the results of (a) and (c).

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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.