User: Sound engineers studied factors that might affect the output, in decibels, of a rock concert’s speaker system. The desired level of significance was a = .05. The results of their ANOVA tests are shown:

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User: Sound engineers studied factors that might affect the output, in decibels, of a rock concert’s speaker system. The desired level of significance was a = .05. The results of their ANOVA tests are shown: Source of Variation SS df MS F P-value Amplifier 99.02344 99.02344 0.005718 Position 93.98698 31.32899 3.215807 0.051003 Interaction 10.15365 3 3.384549 0.347412 0.791505 Error 155.875 16 9.742188 Total 359.0391 23 The interaction between the Position and Amplifier treatments was