Random samples were selected from three populations. The data obtained are shown below. Please note that the sample sizes are not equal. Treatment 1 Treatment 2 Treatment 3 45 32 39 41 33 31 37 32 44 45 42   39     ​ a. Compute the overall mean x b. Using a = .05, test to see if there is a significant difference among the treatment means. Show all required parts of the test: hypothesis, work/calculations of test statistic and/or p-value, and conclusion in context of the problem.

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