Chapter 12, Problem AP4.6CPT

To determine

To find out which of the following sampling plans is most appropriate for estimating this proportion.

Answer to Problem AP4.6CPT

Option (e) is the correct option.

Explanation of Solution

The town council wants to estimate the proportion of all adults in their medium sized town who favor a tax increase to support the local school system. Thus, we have to look at the three conditions for calculating a hypothesis test for the population proportion are: Random, Independent and Normal.

Thus, we have that in option (e), since everybody in the population is expected to be listed in the alphabetical list of all adults and since we take a random sample from the list, the random condition will be satisfied and thus, this sample plan is most appropriate. And in the rest of the option the conditions are not met. Thus, the option (e) is the correct option.