A recent study evaluated how addicted teenagers become to nicotine once they start smoking. The response variable was the number of yes answers on a questionnaire called the Hooked on Nicotine Checklist (HONC). Of teenagers who had tried tobacco, the mean HONC score was 3.3 (s=4.2) for the 152 females and 2.8 (s=4.1) for the 176 males. Find the standard error comparing the sample means. Interpret.