Answered: A philanthropic organization sent free…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A philanthropic organization sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 4722 donations. A) Give a 90% 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 the right plausible?

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 4722 donations.
(a) Give a 90% 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 90% confidence interval?
% to %.
(Round to two decimal places as needed.)
The 90% confidence interval is from

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