Nicotine in Cigarettes The Carolina Tobacco Company advertised that its bestselling nonfiltered cigarettes contain at most 40 mg of nicotine, but Consumer Advocate magazine ran tests of 10 randomly selected cigarettes and found the amounts (in mg) shown in the accompanying list. It’s a serious matter to charge that the company advertising is wrong, so the magazine editor chooses a significance level of a 5 0.01 in testing her belief that the mean nicotine content is greater than 40 mg. Using a 0.01 significance level, test the editor’s belief that the mean is greater than 40 mg.

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