A moulding machine in a factory was not working very well. About a third of the time, the plastic water guns that it was making came out with a flaw in the handle. The repair mechanic adjusted the stamping pressure. Then she ran one gun through. It came out just fine, so she figured she had solved the problem. What are the errors in this experiment? TICK ALL THAT APPLY
A) Not enough subjects
B) Subjects were not similar
C) Conditions were not kept the same
D) The experiment was not reproduced
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No one offers a better overall view of injection molding plants and how machines are maintained than our industry’s field-service engineers.
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