Analysis of the Effects of Grade and School on Lead Levels: A Two-Way ANOVA Approach

A statistical study using two-way ANOVA to analyze how grade and school influence lead levels in students.

Ryan Scott

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AnalysisoftheEffectsofGradeandSchoolonLeadLevels:ATwo-WayANOVAApproachForscenariobelow,statewhichstatisticalmethod/testyouwouldusetoexplorethequestion.Explainwhyyoumadethatdecision,andstatewhattheindependentanddependentvariablesareYouwanttoseeifmeanleadlevelsdiffersignificantlybystate,bytypeofcommunity(urban/suburban/rural),orbyaninteractionofthetwo.Basedonthefollowinginformation,completethefollowingANOVAtableandincludeexcelspreadsheet:®Youhaveasamplesizeof72.eTherearethreegradesandfourschools.eTreatGradeasafixedeffectwhencalculatingFandthecorrespondingp-value.eTreatSchoolarandomeffectwhencalculatingFandthecorrespondingp-value.SourceofVariation|Ss|of|ws[|F|Pualue|184034322722Interaction94.194|—StudyXY

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