The Substance data fileatthebookswebsiteshowsacontingencytableformedfromasurvey that askedasampleofhighschoolstudentswhethertheyhaveeverusedalcohol,cigarettes, and marijuana.Findthe P-valuefortestingwhetheradifferenceexistsbetweenthosewho haveusedornotusedalcoholonwhethertheyhaveusedmarijuana,using (a) formula(5.4); (b) software.Stateassumptionsforyouranalysis,andinterpretresults.

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The Substance data fileatthebook’swebsiteshowsacontingencytableformedfromasurvey that askedasampleofhighschoolstudentswhethertheyhaveeverusedalcohol,cigarettes, and marijuana.Findthe P-valuefortestingwhetheradifferenceexistsbetweenthosewho haveusedornotusedalcoholonwhethertheyhaveusedmarijuana,using

(a) formula(5.4);

(b) software.Stateassumptionsforyouranalysis,andinterpretresults.

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