The American College Health Association€”National College Health Assessment survey, introduced on page 58, was administered at 44 colleges and universities in Fall 2011 with more than 27,000 students participated in the survey. Students in the ACHA€”NCHA survey were asked €˜€˜Within the last two weeks, how many times have you had five or more drinks of alcohol at a sitting?€ The results are given in Table D.17. Is there a significant difference in drinking habits depending on gender? Show all details of the test. If there is an association, use the observed and expected counts to give an informative conclusion in context.

Table D.17

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Female Male Total 5402 13,310 3678 18,712 1-2 2147 5825 912 3-4 966 1878 358 5+ 495 853 Total 8956 18,312 27,268