Chapter 2: Q13-5OQ (page 339)
Question:Design specifications require that a key dimension on a product measure 100 6 10 units. A process being considered for producing this product has a standard deviation of four units.
- What can you say (quantitatively) regarding the process capability?
- Suppose the process average shifts to 92. Calculate the new process capability.
- What can you say about the process after the shift? Approximately what percentage of the items produced will be defective?
Short Answer
Answer
Standard deviation is important because it helps us to understand how spread the values are in the given dataset. In real life, standard deviations are used by the school or universities professors to calculate the spread of the student’s test scores among them.