(Answered) Question the number of defective items out of random

Statistics

Question: The number of defective items out of random samples of 100 windshield wipers selected at the end of each production shift at a factory is as follows:

4, 4, 5, 4, 4, 6, 6, 3, 3, 3, 3, 2, 2, 4, 5, 3, 4, 6, 4, 12, 2, 2, 0, 1, 1, 1, 2, 3, 1.

Is there evidence that the production process is out of control?

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