A medical office administers a survey, regarding patient satisfaction. Based
on the survey results, the office provides a confidence interval estimate of
50% to 80% for customer satisfaction. If the office wishes to construct a
confidence interval that more accurately represents the proportion of patient
satisfaction, how should the design be altered?
Select all that apply.
A. Use a smaller sample size.
B. Use a smaller confidence level.
C. Use a larger sample size.
D. Use a larger confidence level.