Confidence in Doctors
In 2014, Equiniti 360 Clinical reported that 52,250 out of a total of 55,000 patients in Wales said they had a great deal of confidence in their doctors.
Assume the conditions for using the Central Limit Theorem are met.
a. Find a 99% confidence interval for the proportion that has a great deal of confidence in the doctors and interpret this interval.
b. Find a 90% confidence interval and interpret it.
c. Which interval is wider?
d. How would a 95% interval compare with the others in width?