A Gallup Poll Reported That 88% of Americans Say They

Multiple Choice

A Gallup poll reported that 88% of Americans say they have health insurance. If the sample size was 2500, an approximate 95% confidence interval for the proportion of all Americans who say they are insured is

A) between 80% and 96%.
B) between 84% and 92%.
C) between 86% and 90%.
D) between 87.3% and 88.7%.