Question: Compare the mean etch uniformity values at each of the C2F6 flow rates from Exercise 4.33 with a scaled t distribution. Does this analysis indicate

Compare the mean etch uniformity values at each of the C2F6 flow rates from Exercise 4.33 with a scaled t distribution. Does this analysis indicate that there are differences in mean etch uniformity at the different flow rates? Which flows produce different results?

Flow Rate Mean Etch Uniformity 125 160 200 3.3% 4.4% 3.9%

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