Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 40, No. 1 (1991), pp. 1-12 (12 pages) A standard combined Shewhart-cumulative score quality control scheme for controlling ...

To assess a flour mill’s performance, an operations manager checks processing data in the lab from product sample tests. Issues such as contamination are also monitored. Proper flour sampling can make ...

The next sample design for the customer satisfaction survey uses stratification by State. The sampling frame is also sorted by Type and Usage before sample selection, to provide additional control ...

For a food manufacturer, there are few things worse than calling for a mandatory food product recall. Food safety is a big deal and food recalls occur much more frequently than we may realize. And we ...

To develop effective food control systems, regulatory bodies and laboratories in Member States must have the capability to apply sound sampling schemes and analytic methods. Our efforts focus on the ...

Certain aspects of quality control testing hasn't changed all that much over the decades. While it is necessary and extremely important, when working with various Departments of Transportation (DOT) ...

New Delhi: The Central Drugs Standard Control Organisation (CDSCO) has issued new guidelines for effective surveillance for quality and efficacy of drugs and cosmetics available in the market by ...