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Mathematics, 10.03.2020 20:34 Juliette9525

Are TV commercials louder than their surrounding programs? To find out, researchers collected data on 50 randomly selected commercials in a given week. With the television's volume at a fixed setting, they measured the maximum loudness of each commercial and the maximum loudness in the first 30 seconds of regular programming that followed. Assuming conditions for inference are met, the most appropriate method for answering the question of interest is:. (a) a one-proportion z test. (b) a one-proportion z interval. (c) a paired t test. (d) a paired t interval. (e) none of these.

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