Concept explainers
To find out which of the following is the main reason for using a large

Answer to Problem AP4.31CPT
Option (d) is the correct option
Explanation of Solution
The main reason for using a large sample size in constructing a confidence interval to estimate the proportion of city taxpayers who would support such a project is that the larger the sample size will be, the better any estimates will be and thus this will then mainly increase the precision of the estimate. Thus, option (d) is the correct option i.e. to increase the precision of the estimate.
Chapter 12 Solutions
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