Playing Video Games In a recent study of 35 ninthgrade
Chapter 7, Problem 11(choose chapter or problem)
Playing Video Games In a recent study of 35 ninthgrade students, the mean number of hours per week that they played video games was 16.6. The standard deviation of the population was 2.8. a. Find the best point estimate of the mean. 16.6 hours b. Find the 95% confidence interval of the mean of the time playing video games. 15.7 _ m _ 17.5 c. Find the 99% confidence interval of the mean time playing video games. 15.4 _ m _ 17.8 d. Which is larger? Explain why.
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