AP Statistics Name:___________________________ Date: _____________ Hypothesis Test Checklist Example 1: Nicotine Content The nicotine content in milligrams (mg) in cigarettes of a certain brand is normally distributed with mean µ and standard deviation =0.1 mg. The brand advertises that the mean nicotine content of its cigarettes is 1.5mg, but measurements on a random sample of 100 cigarettes of this brand gave a mean of ̅=1.53 mg. Is this evidence that the mean nicotine content is actually higher than advertised? To answer this question, test this hypothesis at the 5% significance level. Parameter of Interest Hypothesis Null Hypothesis: (in symbols) Null Hypothesis: (in words) Alternate Hypothesis: (in symbols) Alternate Hypothesis: (in words) Assumptions/ State AND Check: Conditions/ Requirements Name of Test Test Statistic Sketch/Picture Sketch of the sampling distribution of the sample statistic indicating the mean and the value of the statistic: Formula Without Numbers: Formula With Numbers: Obtain p-value (state alpha) Make a Decision State Conclusion/ Interpretation in Context

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# Example 1 – Nicotine Content