search query: @indexterm PERT / total: 49
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| Author: | Farnum, N.R. Stanton, L.W. |
| Title: | Some results concerning the estimation of beta distribution parameters in PERT |
| Journal: | Journal of the Operational Research Society
1987 : MAR, VOL. 38:3, p.287-291 |
| Index terms: | PERT ESTIMATION |
| Language: | eng |
| Abstract: | The traditional method of estimating mean activity-time in PERT analysis,as a weighted average of the pessimistic,most likely and optimistic activity-time,is estimated. Based on properties of the beta distribution,it is shown that there are theoretical grounds for using this estimate for a specified range of modal activity times. Values which may be used as guidelines for the proper use of estimate are given. A simple refinement of the estimate is also suggested when the modal value lies outside the specified range. |
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