
A Guide to Control Charts - iSixSigma
Jan 28, 2025 · How do you know which control charts to use for an improvement project? Our guide can help you identify which works best for your needs.
How to Calculate and Utilize Upper Control Limit - iSixSigma
Jan 30, 2025 · In this example, a manager is using a control chart to measure the average time to answer a customer question on a helpline. The manager collected about 20 samples of call …
How to Use a CUSUM Chart for Process Improvement
Apr 18, 2023 · A CUSUM (cumulative sum) chart is a type of control chart used to monitor the deviation from a target value.
Steps in Constructing an X-Bar and R Control Chart - iSixSigma
Oct 29, 2024 · Looking to build your own X-bar and R-control chart? Our article covers every possible action you'll need to take to make your own.
I-MR Chart: Understanding Your Process Stability - iSixSigma
Oct 21, 2024 · What is an I-MR Chart? Find out how these control charts can clue you into process stability as well as point out any errors in your workflow.
Using Control Charts or Pre-control Charts - iSixSigma
Sep 14, 2015 · Many quality professionals have declared that pre-control charts have gone the way of the Dodo bird. Before writing them off, however, learn more about pre-control charts …
Monitoring Process Stability with Control Charts - iSixSigma
Mar 21, 2025 · A control chart, also known as a Shewhart or Process Behavior chart, is a time series graph of data collected over time. It is composed of a center line representing the …
Steps in Constructing a p-Chart - iSixSigma
Oct 11, 2024 · How do you construct a p-chart? Learn all about how to utilize and construct this useful tool in testing nonconformance among data.
Measurement system: gages, fixtures, tools, and/or test equipment required to measure the part or process. Sample size and frequency Control method: statistical process control, inspection, …
Run Charts: A Simple and Powerful Tool for Process Improvement
Oct 16, 2024 · What are run charts? Learn all about how these simple charts can set your process improvement cycle up for success in our guide.