Hi Julia,

In some exam questions, there may be multiple correct answer, it is in your best interest to pick the best answer out.

I agree that answer B is also correct, however it is better to investigate what caused the outliers first before taking actions

Hi,
I found this question on Oliver F. Lehmann prep test (200 questions document):

136. You are running a project to develop the production process for a future electronic component. Evaluating some first test batches, you found out that the precision is generally very good, but that you have some irregular outliers in a completely unpredictable pattern. What should you do?
o Ignore the outliers; they are not relevant as long as the yield from the production is sufficiently high.
o Try to increase the accuracy of the process by adjustments, thus reducing the number of outliers.
o Inform the designated production manager of your observations and ask him to take care after handover.
o Research outliers, they may give you important insights into problems which may trouble later production.

Correct answer is (D), and I don't completely understand why answer (B ) wouldn't be correct too. Would like to know your thoughts.
Thanks!
Julia