Statistics questions

Statistics
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Apr 8th, 2015

p1hat-p2hat= 0.4-0.49 =-0.09

Std error =0.019

Tabular value = 1.645

Margin of error = 0.031

Lower limit = -0.09 -0.031 = -0.121

Upper limit = -0.09+0.031 = -0.059

If we take the other way

p2hat- p1hat= 0.49-0.4 =0.09

Lower limit =0.09-0.031 =0.059

Upper limit =0.09+0.031 =0.121


Apr 8th, 2015

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Apr 8th, 2015
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Apr 8th, 2015
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