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17.02.2020 • 
Mathematics

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.

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