Question: Refer to Exercise 11.5. Are the population variances the same for scrap rates (3 plants)? Exercise 11.5 Scrap rates per thousand (parts whose defects cannot

Refer to Exercise 11.5. Are the population variances the same for scrap rates (3 plants)?
Exercise 11.5
Scrap rates per thousand (parts whose defects cannot be reworked) are compared for 5 randomly selected days at three plants. Do the data show a significant difference in mean scrap rates?

Scrap Rate (Per Thousand Units) Plant A Plant B Plant C 11.4 12.5 10.1 13.8 13.7 11.1 14.1 16.8 13.2 14.6 10.2 9.5 9.0 13.3 5.9

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