A philanthropic organisation sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 4916 donations.
(a) Give a 95% confidence interval for the true proportion of those from their entire mailing list who may donate.
(b) A staff member thinks that the true rate is 4.9%. Given the confidence interval you found, do you find that rate
plausible?
(a) What is the 95% confidence interval?
The 95% confidence interval is from 1% to %.
(Round to two decimal places as needed.)
Just question A