]It is widely known that alcohol related car accidents can have a big impact on peopleâ€™s...

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]It is widely known that alcohol related car accidents can havea big impact on peopleâ€™s lives. One widely reported statistic isthat the mean number of â€œyears of potential life lostâ€ among men is32, but it was computed several years ago. Researchers want to knowif this statistic has changed since the data were first compiled,with a significance level of 5%. A random sample of 24 alcoholrelated fatalities from this moth had a mean â€œyears of potentiallife lostâ€ of 33.8 and a standard deviation of 6 years.
a. [7 points] Construct a confidence interval around the samplemean at 95% Confidence Level.
b. [7 points] Based on the confidence interval, how would youdecide about the hypothesis that the mean statistic of â€œyears ofpotential life lostâ€ has remained the same (at 5% level ofsignificance)?

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a 7 points Construct a confidence interval around the samplemean at 95 Confidence LevelThe provided sample mean is 338 and the sample standarddeviation is s 6 The size of the sample is See Answer

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