Given the following activity network: Az A; A. As A4 Activity A1 takes 3 weeks, A2 takes 8 weeks, A3 takes 7 weeks, A4 takes 9 weeks, A5 takes 4 weeks. What is the earliest project completion time? _weeks (round to the nearest integer) A store has the following demand figures for the last five years: Year Demand 1 1000 2 1500 3 1200 4 1600 5 1400 What is the exponential smoothing forecast for year 4? Use alpha = 0.2 and a forecast for year 2 of 1600. (round to nearest integer) Company A is providing technical support for smartphone users. It sees most of its demand during the evening hours of the day. The demand for its support services for the last three days was as follows: Day Time of day Demand (in thousands) Morning 140 1 Afternoon 70 Evening 120 Morning 30 2 Afternoon BO Evening 110 Morning 50 Afternoon 160 Evening 160 3 What is the seasonal index for the evening? 0.875 0.5 1.625 1.75