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Jeffrey D. Hofer

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Jeffrey D. Hofer is a senior statistician in Global Statistical Sciences at Eli Lilly and Company.

Articles

A Risk-Management Approach to Cleaning-Assay Validation

A Risk-Management Approach to Cleaning-Assay Validation

Jeffrey D. Hofer;Brian W. Pack
June 2nd 2010

The authors recommend a strategy for classifying similar nonstainless-steel surfaces into three groups based upon the analytical recovery that was observed in this study.

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Routine Sample Size for a Retest Procedure

Jeffrey D. Hofer
November 2nd 2003

This article discusses a straightforward approach that scientists may use to descide how many nonsuspect restest results are required to provide sufficient evidence to overcome an initial suspect result.

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