cigarette electronics How to choose your electronic cigarette? - X-Bar E-Cigarette | How E-Cigarettes Work,

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Brand A 2.1 4.0 6.3 5.4 4.8 3.7 6.1 3.3 4.3 3.9 Brand B 4.1 0.6 3.1 2.5 4.0 6.2 1.6 2.2 1.9 5.4 Using the Wilcoxon Rank Sum Test, test the hypothesis at the 0.05 level of significance that the median nicotine contents of the two brands are equal against the alternative that they are unequal.