A company manufacturing CDs is working on a new technology. A random sample of 700 Internet users were asked: "As you may know, some CDs are being manufactured so that you can only make one copy of the CD after you purchase it. Would you buy a Co with this technology, or would you refuse to buy it even if it was one you would normally buy?" Of these users, 69% responded that they would buy the CD. a) Create a 95% confidence interval for this percentage. b) If the company wants to cut the margin of error in half, how many users must they survey? a) The 95% confidence interval is (66 % 72%). (Round to one decimal place as needed.)

A company manufacturing CDs is working on a new technology. A random sample of 700 Internet users were asked: "As you may know, some CDs are being manufactured so that you can only make one copy of the CD after you purchase it. Would you buy a Co with this technology, or would you refuse to buy it even if it was one you would normally buy?" Of these users, 69% responded that they would buy the CD. a) Create a 95% confidence interval for this percentage. b) If the company wants to cut the margin of error in half, how many users must they survey? a) The 95% confidence interval is (66 % 72%). (Round to one decimal place as needed.)

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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CALCULATE AND INTERPRET THE CONFIDENCE INTERVAL.
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