Question

for a survey, a sample of 332 people was selected at random from all registered voters in a county. based on the survey, it is estimated that 84% all registered voters in the county are in favor of a new law, with an associated margin of error of 3.94% which of the following best describes the plausible values for the percent of all registered voters in the county who are in favor of the new law? a. any value greater than 80.06% and less than 87.94% b. any value greater than 80.06% c. any value less than 80.06% or greater than 87.94% d. any value less than 87.94%

Explanation:

Step1: Calculate lower - bound

$84 - 3.94=80.06$

Step2: Calculate upper - bound

$84 + 3.94 = 87.94$

Answer:

A. any value greater than 80.06% and less than 87.94%