Question: answer Consider the date with analysis shown in the following computer output: Level N Mean StDev A 6 87.300 5.548 B 5 76.167 6.555 C

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Consider the date with analysis shown in the following computer output: Level N Mean StDev A 6 87.300 5.548 B 5 76.167 6.555 C 6 80.000 9.230 D 7 69.333 6.154 Source DF SS MS F P Groups 3 1087.33 362.44 7.40 0.002 Error 20 978.97 48.95 Total 23 2066.30 Is there sufficient evidence of a difference in the population means of the four groups? O Yes O No

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