Question 5

Scenario: A company utilizes two different machines to manufacture parts of a certain type. During a single shift, a sample of  parts produced by each machine is obtained, and the value of a particular critical dimension for each part is determined. The comparative boxplot below is constructed from the resulting data.

Problem: Compare and contrast the two samples.

Process: ...

Answer:

  1. The only outlier that exists is from machine 1.
  2. Machine 2's sample values have considerably more variation than machine 1's sample values.
  3. A typical value seems to be about the same for the two machines.