The distribution ages for students at the state college is positively skewed with a mean of μ = 21.5 and a standard deviation of σ = 3. a. What is the probability of selecting a random sam ple of n = 4 students with an average age greater than 23? (Careful: This is a trick question.) b. What is the probability of selecting a random sample of n = 36 students with an average age greater than 23? c. For a sample of n = 36 students, what is the prob ability that the average age is between 21 and 22?

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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.