Consider the data below: Month Demand Jan 141 Feb 276 Mar 216 Apr 156 May 261 Jun 141 Jul 246 Aug 246 Sep 216 Oct 156 Nov 216 Predict the demand for December using 4-period moving average. a. 197 O b. 211 O c. 208 O d. 278 e. 196 There are four critical paths in a network. A-B-C-D-E, A- F-E, A-B-H-J-K-E and A-S-T-E. Each activity in this network can be crashed by a maximum of 8 weeks. The crashing cost (per week), for the first week (crashing first time), for activity A is: $420, E is $435 and all other activities is: $105 (per week per activity). The crashing cost, second week and onwards(crashing second time), for activity A is $1050 per week, E is $1260 per week and for all other activities is $210 per activity per week. You have a maximum crashing budget of $2630. The maximum possible reduction in the project duration will be: O a. 4 weeks O b. 6 weeks O c. 3 weeks O d. 2 week O e. 5 weeks A project has three critical paths: A-B-C-D-E, A-G-H-E, and A-F-I-E. Crashing costs (in thousands, per week) for each activity is listed below: Activity Crashing 1st Crashing Crashing time 2nd time 3rd time A 38 5 2 B 26 3 3 C 26 2 2 D 5 8 1 E 30 5 IF 29 26 28 11 3 11 2 11 8 2 What is the total cost of reducing this project by two weeks? G H a. 40 O b. 68 . 48 O d. 37 O e. 35 N W 2 W~~ 2 2 3