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Which of the following is TRUE if you choose a 95% level of confidence?

Which of the following is TRUE if you choose a 95% level of confidence?

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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Which of the following is TRUE if you choose a 95% level of confidence? You are using a.05. You are accounting for a 5% margin of error. There is a 2.5% margin of error for each extreme tail of the distribution. 47.5% of the distribution from above and below the mean will be considered as the range for saying that the sample mean is representative of the u. O All of the above
Transcribed Image Text:Which of the following is TRUE if you choose a 95% level of confidence? You are using a.05. You are accounting for a 5% margin of error. There is a 2.5% margin of error for each extreme tail of the distribution. 47.5% of the distribution from above and below the mean will be considered as the range for saying that the sample mean is representative of the u. O All of the above
David, a researcher wanted to know which clothing line is most preferred among SM Baguio customers. As such, he set-up a table at the entrance of the mall and asked nearby random customers to participate in a short poll. All of the following is true EXCEPT: * He used convenience sampling technique Convenience sampling technique has a risk of being non-generalizable He should not have used convenience sampling because the sample lacks representativeness Convenience sampling can be used because the research can establish results even just by having a quick poll
Transcribed Image Text:David, a researcher wanted to know which clothing line is most preferred among SM Baguio customers. As such, he set-up a table at the entrance of the mall and asked nearby random customers to participate in a short poll. All of the following is true EXCEPT: * He used convenience sampling technique Convenience sampling technique has a risk of being non-generalizable He should not have used convenience sampling because the sample lacks representativeness Convenience sampling can be used because the research can establish results even just by having a quick poll
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