Chapter 12.3, Problem 22HP

To determine

To explain: the correct way to increase the accuracy of a survey.

Answer to Problem 22HP

Both Amy and Esteban’s way of increasing the accuracy of the survey is correct as in both cases several samples are taken into consideration.

Explanation of Solution

Given information :

Amy suggests the survey should include as many people in the population as possible.

Esteban suggest the sample for the survey should be chosen randomly. Several random samples should be taken.

Amy’s way of increasing the accuracy is correct as the survey includes most of the people in the population, thus increasing the samples in the survey.

Esteban’s way of increasing the accuracy suggest the sample for the survey should be chosen randomly, which increases the probability of a sample to be chosen. Selecting several random samples can increase the accuracy of the survey.