Statistics question number 14

label Statistics
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

Apr 20th, 2015

standard error =14.45

t value for 12 df = 1.782

margin of error = 14.45 *1.782 =25.7= 26

xbar1-xbar2 = 104-84=20

lower limit =20-26 = -6

upper limit =20+26=46 

if we round  in the beginning

margin of error is 25

then lower limit = 20-25 =-5

upper limit =20+25=45 

Apr 20th, 2015

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Apr 20th, 2015
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Apr 20th, 2015
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