The Ford Motor Company is interested in consumer acceptance of its subcompact car based on the proportion of positive responses to a survey.How large a survey must the company take to have 95% confidence and no more than 0.01 error?
A) 19208
B) 9604
C) 49
D) 4900
E) 9603

Question

Quizplus · Accepted Answer

To determine the sample size for a proportion with a 95% confidence level and a margin of error of 0.01, the formula n = (Z^2 * p * (1-p)) / E^2 is used. Assuming maximum variability (p = 0.5), Z for 95% confidence is 1.96, and E is 0.01, the calculation results in approximately 9604.

The Ford Motor Company Is Interested in Consumer Acceptance of Its