A researcher is interested in finding out if college bound high
A researcher is interested in finding out if college-bound high school students tend to smoke cigarettes less than high school students who are not college-bound. He distributes a questionnaire and finds that for a group of 57 college-bound students the mean number of cigarettes smoked per week is  with a standard deviation of  For 36 noncollege-bound students, he finds that the mean number of cigarettes smoked per week is  with a standard deviation of s2 = 3.0 . Using these results, test the null hypothesis of no difference between college-bound and noncollege-bound high school

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