Statistics Spotlight

2013

Statistics Roundtable: Providing Better Insights

by Doganaksoy, Necip; Hahn, Gerald J.; and Meeker, William Q.

In an earlier Statistics Roundtable column, we advocated for the use of degradation testing (that is, monitoring change in a quality or performance characteristic) instead of time to failure....


Statistics Roundtable: Balancing Priorities

by Anderson-Cook, Christine M.;

We live in a complex world in which getting exactly what we want is often difficult or impossible. The notion of a trade-off is something we are forced to confront almost daily....


Statistics Roundtable: Wanderlust and Memory

by Hare, Lynne B.

Pop quiz. Question one: How do you derive Shewhart (X-bar and R, or X-bar and S) control chart limits?...


Statistics Roundtable: One Size Does Not Fit All

by Hoerl, Roger W., Snee, Ronald D.

The need to improve is ever present in all endeavors and will continue to be so. We live in a dynamic world. As predicted in the second law of thermodynamic and entropy, the world will continue to change....


Statistics Roundtable: Getting Graphical

by Borror, Connie M., White, T. Kevin

A company has six manufacturing processes critical to its business success. Management recently required each area manager to provide quarterly reports on the performance of their particular process....


Statistics Roundtable: Let's Be Realistic

by Anderson-Cook, Christine M.

Decision making is all about understanding and comparing trade-offs between choices: What benefits are possible, what are the risks and can they be mitigated, and what will each of the alternatives cost?...


Statistics Roundtable: Group Effort

by Seaman, Julia E.; Allen, I. Elaine

Cluster analysis is being widely used in disciplines as diverse as marketing, genomics and climate change. The technique lends itself to large data sets and small, focused data sets....


Statistics Roundtable: Follow the Rules

by Hare, Lynne B.

Despite appearances to the contrary, I am not old enough to have participated in the first discussions of control chart rules....



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