Statistics Spotlight


Statistics Spotlight: Close Enough?

by Barsalou, Matthew

I once explained to a colleague the concept of confidence intervals around the mean of a sample. To simplify the concept, and for training purposes only, I told my colleague that I live 30 km from work. I don’t believe I live 30.000 km from work....

Statistics Spotlight: Getting the Luster Back

by Lucas, James M.; Snee, Ronald D.

A textile fiber manufacturing plant was having a production yield problem. On occasion, the plant was producing yarn that was not bright enough. The low-luster yarn was recycled, thus reducing yields and increasing manufacturing costs....

Statistics Spotlight: The Foundation of Statistical Engineering

by Hare, Lynne B.

Physics has been around since Isaac Newton (1642-1727) and before, depending on whom and how you count. Chemistry has been around since Merlin, a fiction of 1136. Statistics, especially modern statistics, has been around for about 120 years....

Statistics Spotlight: On the Upswing?

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

For the last three Major League Baseball seasons, the number and rate of home runs have increased, especially in the seasons’ first months (March and April)....

Statistics Spotlight: A Unified Approach

by Jones-Farmer, L. Allison; Hoerl, Roger

The emerging discipline of statistical engineering focuses on how to link and integrate multiple methods—including those outside of statistics—in an overall approach to address complex problems....

Statistics Spotlight: Illuminating Idea

by Barsalou, Matthew

There’s a light bulb that’s been in use at a fire station in Livermore, CA, since 1901. The bulb has never been turned off, although it has gone out due to power outages and a week of renovation, as well as a brief trip to a new fire station in 1976....

Statistics Spotlight: Practical vs. Statistical Priorities

by Anderson-Cook, Christine M.; Lu, Lu

Randomization during data collection in a designed experiment is an effective strategy for reducing system bias and ensuring independent observations, but at what cost should it be fully implemented?...

Statistics Spotlight: The Complete Picture

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

The net promoter score (NPS) was proposed by Frederick Reichheld in 2003 as “the one number you need to grow.” It is now ubiquitous in marketing and for reporting organization growth....

Statistics Spotlight: The Music of the Spheres

by Hare, Lynne B.

During the sixth century B.C., it is said, Pythagoras heard varying rings of a blacksmith’s hammers and began to question the causes of differences among their pitches. The differences seemed to be explained by differing hammer weights....

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