A ________ shows trends in a quality measure over time.
A) Pareto diagram
B) Fishbone (i.e., Ishikawa) diagram
C) Cost-of-Quality (COQ) report
D) Run chart
E) Taguchi Loss Function (TLF)

Question

A ________ shows trends in a quality measure over time.
A) Pareto diagram 
B) Fishbone (i.e., Ishikawa) diagram 
C) Cost-of-Quality (COQ) report 
D) Run chart 
E) Taguchi Loss Function (TLF)

Quizplus · Accepted Answer

A run chart is specifically designed to display trends over time, making it the best choice for showing a quality measure over time. The other options have different purposes: the Pareto diagram is used to identify the most frequent sources of defects or errors, the Fishbone or Ishikawa diagram is used to identify possible causes of problems, the Cost-of-Quality report is used to quantify the costs associated with defects or errors, and the Taguchi Loss Function is a statistical model used to optimize product or process performance.

A ________ Shows Trends in a Quality Measure Over Time