BeforeaPresidentialelection,pollsaretakenintwoswingstates.TheRepublicancandidate waspreferredby59ofthe100peoplesampledinstateAandby525of1000sampledinstate B. Treattheseasindependentbinomialsamples,wheretheparameter is thepopulation proportionvotingRepublicaninthestate. (a) Ifwecantreatthesepollsasifthesampleswererandom,usesignificancetestsof H0: =

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BeforeaPresidentialelection,pollsaretakenintwoswingstates.TheRepublicancandidate waspreferredby59ofthe100peoplesampledinstateAandby525of1000sampledinstate B. Treattheseasindependentbinomialsamples,wheretheparameter π is thepopulation proportionvotingRepublicaninthestate.

(a) Ifwecantreatthesepollsasifthesampleswererandom,usesignificancetestsof H0:

π =

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