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Mathematics, 08.02.2021 02:10 Dashavu7165

Twelve different video games showing product placement were observed and the duration times of game play in seconds) were recorded and found to have a normal distribution. The
design of the study justifies the assumption that the sample can be treated as a simple random
sample. Given a sample standard deviation of 60.9 sec, use the sample data to construct a 99%
confidence interval estimate of o, the standard deviation of the duration times of game play.
O 5.0 sec O 38.0 sec O 42.6 sec O 39.0 sec

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