Questions (each questions 2.5 marks, total 10 marks for this case study)
Consider the following questions, and then write a brief report to Jane summarizing your
1. How did Scott conclude that the process was not capable based on his first set of
samples? (Hint: Estimate the process standard deviation, ,
2. Does the second set of samples show anything that the first set didn’t? Explain what and
3. Assuming the problem can be found and corrected, what impact do you think this would
have on the capability of the process? Compute the potential process capability using the
second data set.
4. If small samples can reveal something that large samples might not, why not just take
small samples in every situation?