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$n = 12 , \bar { x } = 28.0 , s = 5.7$

Question 6

Multiple Choice

$n = 12 , \bar { x } = 28.0 , s = 5.7$ . Find a $99 \%$ confidence interval for the mean.

A) $( 22.79,33.21 )$
B) $( 22.89,33.11 )$
C) $( 22.79,33.09 )$
D) $( 22.91,33.09 )$
E) $( 23.53,32.47 )$

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