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Using spss, please help with the following problem. Several chemical agents are being tested as...

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Accounting

Using spss, please help with the following problem. Several chemical agents are being tested as the active ingredient in weight-loss supplements. A sample of volunteers is divided into groups, and each group is given one of the supplements.

Agent WeightLoss A1 12.4 A1 10.7 A1 11.9 A1 11.0 A1 12.4 A1 12.3 A1 13.0 A1 12.5 A1 11.2 A1 13.1 A2 9.1 A2 11.5 A2 11.3 A2 9.7 A2 13.2 A2 10.7 A2 10.6 A2 11.3 A2 11.1 A2 11.7 A3 8.5 A3 11.6 A3 10.2 A3 10.9 A3 9.0 A3 9.6 A3 9.9 A3 11.3 A3 10.5 A3 11.2 A4 12.7 A4 13.2 A4 11.8 A4 11.9 A4 12.2 A4 11.2 A4 13.7 A4 11.8 A4 12.2 A4 11.7 S 8.7 S 9.3 S 8.2 S 8.3 S 9.0 S 9.4 S 9.2 S 12.2 S 8.5 S 9.9

a) Is there a difference among the true average weight loss between the agents?

b) Is Tukeys procedure appropriate? Why or why not? If yes, what does it tell us?

I cannot get the agent list to show up in the one way ANOVA setting to place in the "factor" box, please assist.

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