Question: Selectthecorrectresponse:Thereasonweusea z~2 normal quantilescoreinconstructinga confidence intervalforaproportionisthat: (a) Forlargerandomsamples,thesamplingdistributionofthesampleproportionisapprox- imately normal. (b) Thepopulationdistributionisapproximatelynormal. (c) Forlargerandomsamples,thesampledatadistributionisapproximatelynormal. (d) Ifindoubtaboutthepopulationdistribution,itissafesttoassumethatitisthenormal distribution.

Selectthecorrectresponse:Thereasonweusea zα~2 normal quantilescoreinconstructinga confidence intervalforaproportionisthat:

(a) Forlargerandomsamples,thesamplingdistributionofthesampleproportionisapprox-

imately normal.

(b) Thepopulationdistributionisapproximatelynormal.

(c) Forlargerandomsamples,thesampledatadistributionisapproximatelynormal.

(d) Ifindoubtaboutthepopulationdistribution,itissafesttoassumethatitisthenormal distribution.

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