Find a 95% confidence interval for the difference between the proportions of people who prefer cola versus root beer where $\hat { p } _ { \text {cola } }$
= .21, $\hat { p } _ { \text {root beer } }$
= .12,n_cola = 200,n_{root beer} = 150.

Question

Find a 95% confidence interval for the difference between the proportions of people who prefer cola versus root beer where

\hat { p } _ { \text {cola } }

= .21,

\hat { p } _ { \text {root beer } }

= .12,n_cola = 200,n_{root beer} = 150.

Quizplus · Accepted Answer

The Answer of Find a 95% confidence interval for the difference between the proportions of people who prefer cola versus root beer where $\hat { p } _ { \text {cola } }$ = .21, $\hat { p } _ { \text {root beer } }$ = .12,n_cola = 200,n_{root beer} = 150.

Find a 95% Confidence Interval for the Difference Between the Proportions