There were 400 samples taken in each of the two production lines, X and W, of a manufacturing plant.
Question: There were 400 samples taken in each of the two production lines, X and W, of a manufacturing plant. The sample of the production line X had 40 defective units while the sample of line W had 80 defective units.
Estimate the difference in the fraction of defective units produced by the two lines with a confidence coefficient of 90%.
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Deliverables: Word Document
Deliverables: Word Document
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