Attempts to Validate Certain PERT Statistics or 'Picking on PERT'

Attempts to Validate Certain PERT Statistics or 'Picking on PERT'

This letter indicates the restrictions on the Beta Distribution that are required to validate the use of PERT means and variances. The conditions appear to be rather restrictive, thereby limiting the generality of application in computing PERT probabilities. The subjective nature of the PERT estimat...

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Veröffentlicht in:Operations research 1962-11, Vol.10 (6), p.912-915
1. Verfasser: Grubbs, Frank E.
Format: Artikel
Sprache:eng
Schlagworte:
Letters to the Editor
Probabilities
Statistical discrepancies
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Zusammenfassung:This letter indicates the restrictions on the Beta Distribution that are required to validate the use of PERT means and variances. The conditions appear to be rather restrictive, thereby limiting the generality of application in computing PERT probabilities. The subjective nature of the PERT estimation problem is also discussed.
ISSN:0030-364X
1526-5463
DOI:10.1287/opre.10.6.912