How Many Samples Do You Need to Be Confident Your Product Is Good?A simple formula gives you the sample size required to make a 95-percent confidence statement
Tue, 10/06/2015 - 12:54
How many samples do you need to be 95-percent confident that at least 95 percent—or even 99 percent—of your product is good? The answer depends on the type of response variable you are using—categorical or continuous.
The type of response will… How Residuals Can Save You Thousands on Your Next Car PurchaseA little data manipulation could be worth the effort
Thu, 08/08/2013 - 17:37
Purchasing a used car can be stressful due to all the factors that must be considered. Websites such as www.cars.com provide a wealth of information, but how do you navigate through it all to find the best deal?
Once you narrow your choice down to… Statistical Tools for Pharmaceutical ManufacturingFor identifying misclassifications, embedded variation, and an inadequate measuring system
Fri, 12/09/2011 - 14:37
Story update 12/13/2011: Additional information was added to the first paragraph pointing out the connection between FDA requirements and statistical tools.
According to a September 2010 interview of Rick Friedman, director of the manufacturing and…