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Statistics question a.3

Statistics
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Apr 29th, 2015

Pooled variance=(28.75^2*18+24.25^2*9)/27 =747.06

s.e.=sqrt(747.06*(1/19 +1/10))=10.68

Apr 30th, 2015

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Apr 29th, 2015
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Apr 29th, 2015
Feb 20th, 2017
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