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###### DiseusS Ihe nalure of the dala. In particular; the dala based on an observalional study controlled experinut. Shoull the "malclcu pairs" 4 mnucnendeIIL sples' melhods be #pplicd:Sdup appropriale hypotheses. Should the altemative be one [wo-sided? Why?Calculate Ihe test stalislie and stale Ihe conclusion reject not rcicchInc null hypothesis using 0.05. Do nol ASSume that the Iwo populations bCug comparcd have the same standard deviationd) Find the approximate -luctor nanoldowminter

DiseusS Ihe nalure of the dala. In particular; the dala based on an observalional study controlled experinut. Shoull the "malclcu pairs" 4 mnucnendeIIL sples' melhods be #pplicd: Sdup appropriale hypotheses. Should the altemative be one [wo-sided? Why? Calculate Ihe test stalislie and stale Ihe conclusion reject not rcicchInc null hypothesis using 0.05. Do nol ASSume that the Iwo populations bCug comparcd have the same standard deviation d) Find the approximate -luctor nanol dowm interval) Calculale conlidence interval for the diference [n body fat for the (Wo grups. Interpret the result: Write brief conclusion plain English; based VOut findings above;

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