Statistics Spotlight

2005

Are You Making Decisions in a Fog?

by Snee, Ronald D.

Just as water makes up two thirds of the world's surface, measurement constitutes an enormous part of the scientific method and scientific problem solving....


How to Choose the Appropriate Design

by Anderson-Cook, Christine

When planning an experiment, you can consider many possible sets of observations. Choosing the combinations of factors at which to collect data to make up the best design involves balancing multiple goals and objectives....


Uncertainty

by Hare, Lynne B.

The thing about uncertainty is you just never know. Almost 30 years ago, the local chapter of the Institute of Food Technologists invited me, a statistician of all people, to speak at its annual guest night dinner....


Planning Reliability Assessment

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

Let’s say you have designed a new metal spring and want to estimate the time by which 10% of such springs will fail. How many units do you need to test and for how long?...


Cumulative Meta-Analysis

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

Meta-analysis is a set of statistical procedures designed to integrate and synthesize experimental results across independent studies into an overall summary statistic....


Multivariate Tools: Principal Component Analysis

by Mason, Robert L.; Young, John C.

One of the greatest benefits of multivariate thinking and the application of multivariate methods is they show how process variables are interconnected and interrelated. One such tool is known as PCA....



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