Chapter 9.1 Homework 

1.  Which of the following is NOT a requirement of testing a claim or constructing a confidence interval estimate for two population​ portions?

Choose the correct answer below.

1. For each of the two​ samples, the number of failures is at least 5.
2. For each of the two​ samples, the number of successes is at least 5.
3. The sample is at least​ 5% of the population.
4. The sample proportions are from two simple random samples that are independent.