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Collinsville Construction Company Purchases Steel Rods for Its Projects α\alpha = 005, the Observed F Value Is ___________

Question 21

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Collinsville Construction Company purchases steel rods for its projects.Based on previous tests, Claude Carter, Quality Assurance Manager, has recommended not purchasing rods from Redding Rods, Inc.(population 1) , and switching to Stockton Steel (population 2) , since Stockton's rods had less variability in length.Claude has sampled the outputs from Redding's and Stockton's rod manufacturing processes.The results for Redding were s12 = 0.10 with n1 = 8, and, for Stockton, the results were s22 = 0.05 with n2 = 10.Assume that rod lengths are normally distributed in the population.If α\alpha = 0.05, the observed F value is ___________.


A) 0.50
B) 2.00
C) 1.41
D) 0.91
E) 0.71

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