Question 1129594: Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the data to construct a 95% confidence interval estimate of mu, the mean duration of game play.
Data:- 4039 4036 5009 4817 4327 4313
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the data to construct a 95% confidence interval estimate of mu, the mean duration of game play.
Data:- 40 ,39, 40, 36, 50, 09, 48,17, 43, 27, 43, 13
Find the sample mean:: x-bar = 33.75
Find the standard deviation:: s = 13.88
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Margin of Error = z*s/sqrt(n) = 1.96*13.88/sqrt(12) = 7.85
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95% CI: 33.75-7.85 < mu < 33.75+7.85
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95% CI: 25.9 < mu < 41.6
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Cheers,
Stan H.
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