a Show that the variance of Y /n, where Y has a binomial
Chapter 7, Problem 76E(choose chapter or problem)
Problem 76E
a Show that the variance of Y /n, where Y has a binomial distribution with n trials and a success probability of p, has a maximum at p = .5, for fixed n.
b A random sample of n items is to be selected from a large lot, and the number of defectives Y is to be observed. What value of n guarantees that Y /n will be within .1 of the true fraction of defectives, with probability .95?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer