CBS asked a sample of DVR owners to record Late Night with David Letterman on their DVRs.
Question:
CBS asked a sample of DVR owners to record Late Night with David Letterman on their DVRs. Of the 125 DVR owners surveyed, 83 either "gave up or screwed up" because they did not understand how to program the DVR. Construct a 90 percent confidence interval for the true proportion of DVR owners who cannot program their DVRs.
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