A Manufacturing Plant for Recreational Vehicles Receives Shipments from Three

Essay

A manufacturing plant for recreational vehicles receives shipments from three different parts vendors. There has been a defect issue with some of the electrical wiring in the recreational vehicles manufactured at the plant. The plant manager believes that the defect issue is dependent on the parts vendor. The plant manager reviews a sample of quality assurance inspections from the last six months.
a. State appropriate hypotheses to test the plant manager's belief.
b. What is the value of the test statistic and its associated P-value?
c. State the conclusion at α = 0.05.