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Check My Work NCP manufactures printers and fax machines at plants located in Atlanta, Dallas, and Seattle. To measure how much employees at these plants know about quality management, a random sample of 6 employees was selected from each plant and the employees selected were given a quality awareness examination. The examination scores for these 18 employees are shown in the table given below. The sample means, sample variances, and sample standard deviations for each group are also provided. Managers want to use these data to test the hypothesis that the mean examination score is the same for all three plants. Plant 1 Plant 2 Plant 3 Atlanta Dallas Seattle 74 82 72 70 84 71 67 86 ART 8 8 a nate 8 86 74 79 83 66 81 82 65 86 Sample mean 78 67 83 Sample variance 41.2 22.4 8 Sample standard deviation 6.42 4.73 2.83 Set up the ANOVA table and test for any significant difference in the mean examination score for the three plants. Use a= 0.05. Source of Variation Sum Degrees Mean Square of Squares of Freedom (to 2 decimals) F (to 2 decimals) p-value (to 4 decimals) Treatments Error Total The p-value is - Select your answer - What is your conclusion? - Select your answer - v that the means for the three plants are not equal. Check My Work