7.59. An Associated Press story (Feb. 1, 2007) about a University of Chicago survey of 1600 people...

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7.59. An Associated Press story (Feb. 1, 2007) about a University of Chicago survey of 1600 people of ages 15 to 25 in several Midwest U.S. cities indicated that 58% of black youth, 45% of Hispanic youth, and 23% of white youth reported listening to rap music every day.

(a) True or false: If a 95% confidence interval comparing the population proportionsfor Hispanic and white youths was (0.18, 0.26), then we can inferthat atleast 18% but no more than 26% of the corresponding white population listens daily to rap music.

(b) The study reported that 66% of black females and 57% of black males agreed that rap music videos portray black women in bad and offensive ways. True or false:

Because both these groups had the same race, inferential methods comparing them must assume dependent rather than independent samples.

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