Question: 1. A purification process for a chemical involves passing it, in solution, through a resin on which impurities are adsorbed. A chemical engineer wishing to

1. A purification process for a chemical involves passing it, in solution, through a resin on which impurities are adsorbed. A chemical engineer wishing to test the efficiency of 3 different resins took a chemical solution and broke it into 15 batches.

She tested each resin 5 times and then measured the concentration of impurities after passing through the resins. Her data were as follows:

Concentration of Impurities Resin I Resin II Resin III .046 .038 .031

Test the hypothesis that there is no difference in the efficiency of the resins.

Concentration of Impurities Resin I Resin II Resin III .046 .038 .031 .025 .035 .042 .014 .031 .020 .017 .022 .018 .043 .012 .039

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