A computer manufacturing company has sent a mail survey to 2800 of its randomly selected customers that have purchased a new personal computer.The survey asked the customers whether or not they were satisfied with the computer.800 customers responded to the survey.640 customers indicated that they were satisfied,while 160 customers indicated they were not satisfied with their new computer.Construct a 96% confidence interval estimate of the true proportion of customers satisfied with their new computer.
A)[.786 .814]
B)[.788 .812]
C)[.775 .825]
D)[.785 .816]

Question

Quizplus · Accepted Answer

The correct answer is A because the 96% confidence interval is (0.786, 0.814).

A Computer Manufacturing Company Has Sent a Mail Survey to 2800