ANSWER THE QUESTION BELOW (QUESTION 3.16 ON PAGE 95) The Rover 6 is a new custom-designed sports car. An analysis of the task of building the Rover 6 reveals the following list of relevant activities, their immediate predecessors, and their duration: HOW DESCONTO PREDECESSORE TORTO . c Design Order special D . Build door F a Buy body gel 3 M mision and 0 3 at . . 05 2 #tdoors to body shel 1uld engine Dendet engine Am Maste ant body O einer Acontey special scores Mount body and Ecuoi tu chate $Roadtest T N 15 C 9 M. 5 5 . a) Draw a network diagram for the project. b) Mark the critical path and state its length. c) If the Rover 6 had to be completed 2 days earlier, would it help to: i) Buy preassembled transmissions and drivetrains? ii) Install robots to halve engine-building time? iii) Speed delivery of special accessories by 3 days