The ABC Floral Shop sold the following number of geraniums during the last two weeks:
Day Demand Day Demand
1 200 8 150
2 134 9 182
3 157 10 197
4 165 11 136
5 177 12 163
6 125 13 157
7 146 14 169
Develop a spreadsheet to answer the questions. Calculate a forecast of the above demand using a three- and five-period moving average. Graph these forecasts and the original data using Excel. What does the graph show? Which of the above forecasts is best? Why?