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

Exercise 96

Basic Computation:
Distribution Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us.
(a) Suppose n = 33 and p = 0.21. Can we approximate the
distribution by a normal distribution Why What are the values of
and

(b) Suppose n = 25 and p = 0.15. Can we safely approximate the
distribution by a normal distribution Why or why not
(c) Suppose n = 48 and p = 0.15. Can we approximate the
distribution by a normal distribution Why What are the values of
and