Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

Exercise 17

Basic Computation: Central Limit Theorem Suppose x has a distribution with a mean of 8 and a standard deviation of 16. Random samples of size n = 64 are drawn.
(a) Describe the
distribution and compute the mean and standard deviation of the distribution.
(b) Find the z value corresponding to
.
(c) Find
.
(d) Interpretation Would it be unusual for a random sample of size 64 from the x distribution to have a sample mean greater than 9 Explain.