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 4.0, with a standard deviation of 2.0. For 36 non college-bound students, he finds that the mean number of cigarettes smoker per week is 9.0, with a standard deviation of 3.0. Using these results, test the null hypothesis of no difference between college-bound and non-college bound high school students with respect to smoking. What does the outcome of this test indicate?