A major textbook publisher has a contract with a printing company. Part of the contract stipulates that no more than 5 percent of the pages should have any type of printing error. Suppose that the company selects a random sample of 400 pages and finds 33 that have an error. If the printer is meeting the standard, what is the probability that a sample would have 33 or more errors?
A) 0.1245
B) 0.4986
C) 0.0014
D) 0.1250

Question

Quizplus · Accepted Answer

The probability of finding 33 or more errors in a sample of 400 pages, given that the error rate is 5%, can be calculated using a binomial distribution. The probability is approximately 0.0014, indicating that such a result is very unlikely if the printer is meeting the standard.

A Major Textbook Publisher Has a Contract with a Printing