Find the Minimum Sample Size When We Want to Construct

Multiple Choice

Find the minimum sample size when we want to construct a 95% confidence interval on the population proportion for the support of candidate A in the following mayoral election. Candidate A is facing two opposing candidates. In a preselected poll of 100 residents, 22 supported candidate B and 14 supported candidate C. The desired margin of error is 0.06.

A) n = 173
B) n = 174
C) n = 245
D) n = 246