ASQ
CSSBB · Question #26
A machine tool vender wants to sell an injection molding machine. The current machine produces 3.2% defectives. A sample of 1100 from the vender 's machine has 2.9% defective. Do these numbers…
The correct answer is A. yes. See the full explanation below for the reasoning.
Analyze Phase
Question
A machine tool vender wants to sell an injection molding machine. The current machine produces 3.2% defectives. A sample of 1100 from the vender 's machine has 2.9% defective. Do these numbers indicate that the proposed machine has a lower rate of defectives?
Options
- Ayes
- Bno
How the community answered
(54 responses)- A80% (43)
- B20% (11)
Topics
#hypothesis testing#proportion test#defect rate#one-tailed test
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