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34. Windows Penetration You plan to develop a new software system that you believe will surpass the success of Google and Facebook combined. In planning for the operating system that you will use, you need to estimate the percentage of computers that use Windows. How many computers must be surveyed in order to be 99% confident that your estimate is in error by no more than one percentage point? a. Assume that nothing is known about the percentage of computers with Windows operat- ng systems. b. Assume that a recent survey suggests that about 90% of computers use Windows operating systems (based on data from Net Applications). c. Does the additional survey information from part (b) have much of an effect on the sample

34. Windows Penetration You plan to develop a new software system that you believe will surpass the success of Google and Facebook combined. In planning for the operating system that you will use, you need to estimate the percentage of computers that use Windows. How many computers must be surveyed in order to be 99% confident that your estimate is in error by no more than one percentage point? a. Assume that nothing is known about the percentage of computers with Windows operat- ng systems. b. Assume that a recent survey suggests that about 90% of computers use Windows operating systems (based on data from Net Applications). c. Does the additional survey information from part (b) have much of an effect on the sample

MATLAB: An Introduction with Applications
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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34. Windows Penetration You plan to develop a new software system that you believe will surpass the success of Google and Facebook combined. In planning for the operating system that you will use, you need to estimate the percentage of computers that use Windows. How many computers must be surveyed in order to be 99% confident that your estimate is in error by no more than one percentage point? a. Assume that nothing is known about the percentage of computers with Windows operat- ing systems. b. Assume that a recent survey suggests that about 90% of computers use Windows operating systems (based on data from Net Applications). c. Does the additional survey information from part (b) have much of an effect on the sample size that is required?
Transcribed Image Text:34. Windows Penetration You plan to develop a new software system that you believe will surpass the success of Google and Facebook combined. In planning for the operating system that you will use, you need to estimate the percentage of computers that use Windows. How many computers must be surveyed in order to be 99% confident that your estimate is in error by no more than one percentage point? a. Assume that nothing is known about the percentage of computers with Windows operat- ing systems. b. Assume that a recent survey suggests that about 90% of computers use Windows operating systems (based on data from Net Applications). c. Does the additional survey information from part (b) have much of an effect on the sample size that is required?
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