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Home > INT3 > Chapter 7 > Lesson 7.2.5 > Problem 7-120


A company makes metal plates on which they put a special coating. Flaws appear in the finish of these metal plates and the company wants to establish a quality control system. A machine scans each plate after it is finished and reports the number of flaws. The data they collect for samples is sorted and shown below.


Think about the quality control bounds for this company. Should you reject plates that have too few flaws? What upper and lower bounds make sense?

Reject the upper of the data.