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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 taht the sample can be treated as a simple random sample. Use the data to construct a 95% confidence interval estimate and the mean duration of game play.
4055 3884 3859 4019 4319 4819 4654 4034 5005 4822 4341 4310
What is the confidence interval estimate of the poplulation mean?
round to one decimal place as needed.
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What would be a good example of a null and alternative hypotheses for a decision relevant in life? What Type I and Type II errors could occur with your decision-making process?
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Without constructing the 98% confidence interval for the rate of effectiveness, would you expect the interval to be longer or shorter compared to the 95% confidence interval? Why?
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