Chapter 10, Problem 62CRE

In exercises $10.57$ to $10.64$, choose an appropriate test from those listed below. Unless otherwise stated, assume large expected counts.

Chi-square test of goodness of fit Chi-square test of independence Chi-square test of homogeneity Fisher’s Exact Test

No test because the data represent a population, not a sample

Suppose you are testing two different injections by randomly assigning them to children who react badly to bee stings and go to the emergency room. You observe whether the children are substantially improved within an hour after the injection. However, one of the expected counts is less than 5.