The production manager wants to test whether there is a significant difference in the mean number of defective bulbs per 100 bulbs among the three production shifts. A sample of production recors showed the following: 6 a.m. - 2 pm. Shift 2 p.m. -10 Shift 16 21 20 22 18 17 ES 19 OLA19 UNI 20ERSI 28 23 18 25 20 10 p.m. - 6 a.m. Shift Using a = 0.05 significance level. 19257 30 32 27

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Q: Observations 3.481 3.477 3.470 3.448 3.472 3.470 3.485 3.464 3.477 3.475 3.472 3.473 3.472 3.470

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