Statistics Solutions

[Solved] A company that produces power units for toy airplanes, helicopters, cars, and boats adjusts the equipment on its production line to reduce the

Question: A company that produces power units for toy airplanes, helicopters, cars, and boats adjusts the equipment on its production line to reduce the number of defective units. The objective is to improve quality by reducing its 2% defect rate in its mass production of these units. After the adjustment, a quality control supervisor takes a random sample of 200 units during several weeks of production and finds 2 defective units. Set up a directional hypothesis test for the proportion with 1% risk. Fill in all required information.

  1. H0
  2. H1
  3. Critical Value
  4. Test Statistic (Show procedure): z =
  5. Decision on H0
  6. Conclusion on the problem

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Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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