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QUESTION
a study was designed to compare two energy drink commercials. Each participant was shown the commercials in random order and asked to select the...
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 45 out of 100 women and 80 out of 140 men. A large-sample 95% confidence interval for this difference is:
