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

Transcribed Image Text:

1=4.0