Question

Match the following group 1 (charts) with group 2 (use) and select the correct option.

• A. 1 – A, 2 – B, 3 – D, 4 – C
• B. 1 – C, 2 – D, 3 – B, 4 – A
• C. 1 – A, 2 – D, 3 – B, 4 – C
• D. 1 – C, 2 – A, 3 – D, 4 – B

Hint:

In statistical process control (SPC), choosing the correct type of control chart is crucial for monitoring specific data attributes. Remember, R and P charts are for defect rates, while X and C charts are for variable and subgroup data, respectively.

Answer 1

The Correct Option is C

The correct matching of the charts with their uses is as follows:
- R chart (1-A): This chart is used to study the number of defects per unit.
- C chart (2-D): The C chart is used to monitor the number of defective units produced per subgroup.
- P chart (3-B): The P chart is used for studying the size of a variable.
- X chart (4-C): The X chart is used to study the dispersion of measured data. This matching is based on the type of data the control charts are designed to monitor.