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At  α = 0.05 and 0.10, test the hypothesis that the proportion of Consumer (CON) industry companies winter quarter profit growth is more than 1 percentage point greater than the proportion of Banking (BKG) companies winter quarter profit growth, given that  p(CON )= 0.20,  p(BKG)= 0.15, n(CON)= 380, n(BKG)=400. 

Apr 11th, 2015

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Apr 12th, 2015

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Apr 11th, 2015
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Apr 11th, 2015
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