Exercise Question 1 John is responsible for coming up with a forecast of the number of visitors to Metro Zoo. He has gathered the following data on the number of visitors over the last seven weeks: Week Visitors: Week 10 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 620 730 880 700 830 1,020 900- Based on the data above, what is John's forecast of the number of visitors for week 8 using each of the following methods? a) Nave forecast. + + b) A three-period moving average t c) A five-week weighted moving average using a weight of 0.3 for t-1 (i.e., one period before), 0.25 for t-2 (i.e., two periods before), 0.2 for t-3 (i.e., three periods before), 0.15 for t-4 (i.e., four periods before) and 0.1 for t-5 (i.e., five periods before). + t d) An Exponential Smoothing method, assuming that the forecast for week 5 was 900, using a value of 0.3 for a