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He developed the Sichel-t Estimator for the Log-normal distribution's t-statistic. He also made great leaps in the area of the Generalized Inverse Gaussian Distribution which became known as the Sichel Distribution.
He established the Operational Research Bureau in 1952. He was appointed as professor in Statistics and Operations Research in the Graduate Business School of the University of the Witwatersrand. He has been recognized as "one of the grand old men of the SA Statistical Association".
- http://saturn.cs.unp.ac.za/~orssa/history_content.htm Various historical references[dead link]
- Practical applications of some of Dr Sichel's work
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