Find a 95 percent confidence interval for the difference between the proportions of people who prefer cola versus root beer (RB)where _cola= .21, _RB= .12,n_cola = 200,n_RB = 150. A)(-0.018 0.198) B)(0.0255 0.1545) C)(0.073 0.107) D)(0.013 0.167)

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The Answer of Find a 95 percent confidence interval for the difference between the proportions of people who prefer cola versus root beer (RB)where _cola= .21, _RB= .12,n_cola = 200,n_RB = 150. A)(-0.018 0.198) B)(0.0255 0.1545) C)(0.073 0.107) D)(0.013 0.167)

Find a 95 Percent Confidence Interval for the Difference Between