Statistics questions

label Statistics
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schedule 1 Day
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Apr 11th, 2015

z = (p1-p2) /sqrt [ pbar*(1-pbar)*(1/n1+1/n2)]

= (0.82-0.9)/sqrt (0.856*0.144*(1/305+1/254)= -0.08 /0.03= -2.67


Apr 11th, 2015

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Apr 11th, 2015
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Apr 11th, 2015
Sep 23rd, 2017
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