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(e) Using the Sumproduct function, write a formula in cell H25 to compute the Expected duration for Activity A. Copy the formula to cells H26 to H31. The variance of activity is computed using formula ((p - o)/6)^2, where p is the pessimistic duration and o is the optimistic duration. The value 6 is the sum of the weights. (f) Write a formula in cell I25 to compute the activity A variance. Copy the formula to cells I26 to I31. Screenshot attached thank you

(e) Using the Sumproduct function, write a formula in cell H25 to compute the Expected duration for Activity A. Copy the formula to cells H26 to H31. The variance of activity is computed using formula ((p - o)/6)^2, where p is the pessimistic duration and o is the optimistic duration. The value 6 is the sum of the weights. (f) Write a formula in cell I25 to compute the activity A variance. Copy the formula to cells I26 to I31. Screenshot attached thank you

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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(e) Using the Sumproduct function, write a formula in cell H25 to compute the Expected duration for Activity A. Copy the formula to cells H26 to H31.
The variance of activity is computed using formula ((p - o)/6)^2, where p is the pessimistic duration and o is the optimistic duration. The value 6 is the sum of the weights.
(f) Write a formula in cell I25 to compute the activity A variance. Copy the formula to cells I26 to I31.

Screenshot attached thank you

15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 A B с Activity A B с D E D F G Preceding Activities - - E A A C,B D E,F You would like to determine the expected duration and variance for the project's seven activities named A to G. Table 4 has the weights assigned to optimistic, most likely, and pessimistic situations. The expected duration for an activity is the weighted average of the weights and the duration for the activities in each of the situations. As an example, expected duration for Activity A = Weight of Optimistic * Optimistic duration + Weight of Most Likely * Most Likely duration + Weight of Pessimistic * Pessimistic duration. (e) Using the Sumproduct function, write a formula in cell H25 to compute the Expected duration for Activity A. Copy the formula to cells H26 to H31. The variance of activity is computed using formula ((p - o)/6)^2, where p is the pessimistic duration and o is the optimistic duration. The value 6 is the sum of the weights. (f) Write a formula in cell 125 to compute the activity A variance. Copy the formula to cells 126 to 131. Optimistic (0) 6 6 7 5 7 8 F Table 4: Weights Most likely (m) 5 1 Table 5: Expected duration and variance for seven activities Most likely Pessimistic Expected Optimistic (0) (p) t (days) 8 (m) 7 9 9 10 10 G 4 8 8 Pessimistic (p) 14 11 H 1 12 12 11 10 Variance ² Activity A B с D E = F G L A A C.B. D E,F 6 6 7 M Table 5: Expected duration and variance for seven activities Preceding Most likely Pessimistic Expected Optimistic (0) Activities (p) t (days) 8 5 7 8 5 (m) 7 2 N 9 9 10 10 8 8 0 Sample Answer 14 = 11 12 12 11 10 P 7.00 9.33 9.00 9.50 9.83 8.50 7.83 Variance o² 0.111111 1.777778 0.444444 1.361111 0.694444 0.250000 0.694444 Q F
Transcribed Image Text:15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 A B с Activity A B с D E D F G Preceding Activities - - E A A C,B D E,F You would like to determine the expected duration and variance for the project's seven activities named A to G. Table 4 has the weights assigned to optimistic, most likely, and pessimistic situations. The expected duration for an activity is the weighted average of the weights and the duration for the activities in each of the situations. As an example, expected duration for Activity A = Weight of Optimistic * Optimistic duration + Weight of Most Likely * Most Likely duration + Weight of Pessimistic * Pessimistic duration. (e) Using the Sumproduct function, write a formula in cell H25 to compute the Expected duration for Activity A. Copy the formula to cells H26 to H31. The variance of activity is computed using formula ((p - o)/6)^2, where p is the pessimistic duration and o is the optimistic duration. The value 6 is the sum of the weights. (f) Write a formula in cell 125 to compute the activity A variance. Copy the formula to cells 126 to 131. Optimistic (0) 6 6 7 5 7 8 F Table 4: Weights Most likely (m) 5 1 Table 5: Expected duration and variance for seven activities Most likely Pessimistic Expected Optimistic (0) (p) t (days) 8 (m) 7 9 9 10 10 G 4 8 8 Pessimistic (p) 14 11 H 1 12 12 11 10 Variance ² Activity A B с D E = F G L A A C.B. D E,F 6 6 7 M Table 5: Expected duration and variance for seven activities Preceding Most likely Pessimistic Expected Optimistic (0) Activities (p) t (days) 8 5 7 8 5 (m) 7 2 N 9 9 10 10 8 8 0 Sample Answer 14 = 11 12 12 11 10 P 7.00 9.33 9.00 9.50 9.83 8.50 7.83 Variance o² 0.111111 1.777778 0.444444 1.361111 0.694444 0.250000 0.694444 Q F
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