A study of the effect of television commercials on 12-year-old children measured their
Chapter 0, Problem 32(choose chapter or problem)
A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and toys. At the .05 significance level, is there a difference in the mean attention span of the children for the various commercials? Are there significant differences between pairs of means? Would you recommend dropping one of the three commercial types?
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