Statistics question a.4

Statistics
Tutor: None Selected Time limit: 1 Day

Apr 29th, 2015

Confidence Interval = debar + or - t crit ( sd/sqrt (n)

                                = -0.4 + or - 1.833 x 3.4 / sqrt 20

                                = -0.4 + or - 1.39

Apr 30th, 2015

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Apr 29th, 2015
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Apr 29th, 2015
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