Microsoft periodically issues a Security Bulletin that re-ports the software affected by the vulnerability. In a sample of 50 bulletins issued in a recent year, 32 reported a security problem with Microsoft Windows. a. Find a point estimate of the proportion of security bulletins issued that reported a problem with Windows during the year. b. Find an interval estimate for the proportion, part a. Use a 90% confidence interval. c. Practically interpret the confidence interval, part b. Your answer should begin with, “We are 90% confident ... “.
Microsoft periodically issues a Security Bulletin that re-ports the software affected by the vulnerability. In a sample of 50 bulletins issued in a recent year, 32 reported a security problem with Microsoft Windows. a. Find a point estimate of the proportion of security bulletins issued that reported a problem with Windows during the year. b. Find an interval estimate for the proportion, part a. Use a 90% confidence interval. c. Practically interpret the confidence interval, part b. Your answer should begin with, “We are 90% confident ... “.
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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Microsoft periodically issues a Security Bulletin that re-ports the software affected by the vulnerability. In a sample of 50 bulletins issued in a recent year, 32 reported a security problem with Microsoft Windows.
a. Find a point estimate of the proportion of security bulletins issued that reported a problem with Windows during the year.
b. Find an
c. Practically interpret the confidence interval, part b. Your answer should begin with, “We are 90% confident ... “.
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