The X and s chart (also known as the individuals and moving range chart) is specifically designed for time series analysis. It is used to monitor process performance over time by tracking individual data points (X) and their corresponding moving ranges (s). The X and s chart helps identify trends, shifts, and variations in process performance, making it a valuable tool for analyzing time-dependent data. Other tools listed (Pareto chart, scatter diagram, and histogram) are not specifically designed for time series analysis and serve different purposes in quality management1.
References:
The ASQ Certified Manager of Quality/Organizational Excellence Handbook, Fifth Edition. Sandra L. Furterer and Douglas C. Wood. Published 2021231
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