Give an estimate of the difference in gender proportions

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Gender and commercial preference, revisited. Refer to given Exercise. Construct a 95% confidence interval for the difference in gender proportions that favor Commercial B. Explain how you could have obtained these results from the calculations you did in Exercise.

Exercise
Gender and commercial preference. A study was designed to compare two energy drink commercials. Each participant was shown the commercials in random order and asked to select the better one. Commercial A was selected by 44 out of 100 women and 79 out of 140 men. Give an estimate of the difference in gender proportions that favored Commercial A. Also construct a large-sample 95% confidence interval for this difference.

Reference no: EM131423352

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