The confidence level should be%. (Type an integer or a decimal. Do not round.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Twelve different video games showing violence were observed. The duration times of violence were recorded, with the times (seconds) listed below. Assume that these sample data are used with a 0.01 significance level in a test of the claim
that the population mean is greater than 80 sec. If we want to construct a confidence interval to be used for testing that claim, what confidence level should be used for a confidence interval? If the confidence interval is found to be - 38.9
sec <u<247.7 sec, what should we conclude about the claim?
77
14
564 47
57
216 46
174 0
56
The confidence level should be %.
(Type an integer or a decimal. Do not round.)
Transcribed Image Text:Twelve different video games showing violence were observed. The duration times of violence were recorded, with the times (seconds) listed below. Assume that these sample data are used with a 0.01 significance level in a test of the claim that the population mean is greater than 80 sec. If we want to construct a confidence interval to be used for testing that claim, what confidence level should be used for a confidence interval? If the confidence interval is found to be - 38.9 sec <u<247.7 sec, what should we conclude about the claim? 77 14 564 47 57 216 46 174 0 56 The confidence level should be %. (Type an integer or a decimal. Do not round.)
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