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A researcher wants to test the claim that the proportion of juniors who watch television regularly is greater than the proportion of seniors who watch
A researcher wants to test the claim that the proportion of juniors who watch television regularly is greater than the proportion of seniors who watch television regularly. She finds that 56 of 70 randomly selected juniors and 47 of 85 randomly selected seniors report watching television regularly. Construct 95% confidence intervals for each population proportion. Which of the statements gives the correct outcome of the researcher's test of the claim? The 95% confidence interval for juniors is (.706, .894), and the 95% confidence interval for seniors is (.447, .659). Since the intervals overlap, there is not enough evidence to say the proportion of juniors who watch television regularly may be higher than that of seniors. The 95% confidence interval for juniors is (.721, .879), and the 95% confidence interval for seniors is (.464, .642). Since the interval for juniors is higher than the interval for seniors, there is evidence to say the proportion of juniors who watch television regularly may be higher than that of seniors. The 95% confidence interval for juniors is (.706, .894), and the 95% confidence interval for seniors is (.447, .659). Since the interval for juniors is higher than the interval for seniors, there is evidence
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