### How Should the Sample Size be Selected for an X-bar Chart? (Part II)

An earlier article focused on the conceptual application of appropriate sample sizes for X-bar charts. As we discussed, the purpose...

Read More### How Should the Sample Size be Selected for an X-bar Chart? (Part I)

The purpose of control charts is to detect significant process changes when they occur. In general, charts that display averages...

Read More### How do I Choose the Appropriate Type of Control Chart

Proper control chart selection is critical to realizing the benefits of Statistical Process Control. Many factors should be considered when...

Read More### What is the Relationship between Process Stability and Process Capability?

Process Stability and Process Capability are both extremely important aspects of any manufacturing process. Often the concepts behind process stability...

Read More### How do I Know What Product or Process Characteristics to Control?

While the construction of control charts is relatively straight-forward, often a more difficult question is “how do I know what...

Read More### 10 Keys for Maximizing the Benefits of your SPC Program

Statistical Process Control charts have been called the Voice of the Process. Progressive manufacturers utilize control charts to “listen” to...

Read More### What is the Philosophy of Process Control (Rather than Product Control)?

What is Quality? Ask people involved with the design and manufacture of a product the following question: “What is Quality?”...

Read More### Analyzing the Experiment (Part VI)

In the last Blog, we explored the use of contour plots and other tools (such as a response optimizer) to...

Read More### Analyzing the Experiment (Part V)

In the last Blog, we learned how to work with predictive models to find solutions that solve for desired responses. ...

Read More### Analyzing the Experiment (Part IV)

In the last Blog, we learned how to determine the coefficients of a predictive model for 2-level screening designs.It is...

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