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Consider random samples of size 86 drawn from population A with proportion 0.47 and random samples...

Consider random samples of size 86 drawn from population A with proportion 0.47 and random samples of size 64 drawn from population B with proportion 0.19 . Find the standard error of the distribution of differences in sample proportions, p^A-p^B.

Round your answer for the standard error to three decimal places.

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Answer #1

pa = 0.47

na = 86

pb = 0.19

nb = 64

    

     = 0.3505

Standard error

                       

                        = 0.079 (ans)

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