Question

A random sample of museum visitors were asked whether they will purchase tickets to an upcoming exhibit. The resulting confidence interval for the proportion of visitors who will purchase tickets is (0.1,0.2). What is the margin of error?

Answer 1

the margin of error is 0.05

Explanation:

Margin of error = confidence interval ÷ 2

MOE = CI ÷ 2

Confidence interval CI = 0.2 - 0.1 = 0.1

MOE = CI ÷ 2 = 0.1 ÷ 2 = 0.05

the margin of error is 0.05