Refer to the NCP data in Table 13.4. Set up the ANOVA table and test for any significant difference in the mean examination score for the three plants. Use α = .05.
In Table 13.4

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Plant 1 Atlanta 85 75 82 76 71 85 Plant 2 Dallas 71 75 73 74 69 82 Plant 3 Seattle 59 64 62 69 75 67 Sample mean Sample variance Sample standard deviation 79 34 5.83 74 20 4.47 32 5.66