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Find a 95 Percent Confidence Interval for the Difference Between

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Find a 95 percent confidence interval for the difference between the proportions of people who prefer cola versus root beer (RB) where Find a 95 percent confidence interval for the difference between the proportions of people who prefer cola versus root beer (RB) where   <sub>cola</sub>= .21,   <sub>RB</sub>= .12,n<sub>cola</sub> = 200,n<sub>RB</sub> = 150. A) (-0.018 0.198)  B) (0.0255 0.1545)  C) (0.073 0.107)  D) (0.013 0.167) cola= .21, Find a 95 percent confidence interval for the difference between the proportions of people who prefer cola versus root beer (RB) where   <sub>cola</sub>= .21,   <sub>RB</sub>= .12,n<sub>cola</sub> = 200,n<sub>RB</sub> = 150. A) (-0.018 0.198)  B) (0.0255 0.1545)  C) (0.073 0.107)  D) (0.013 0.167) RB= .12,ncola = 200,nRB = 150.


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