FORECASTING AND DATA ANALYSIS

From the data above, carry out the below

a) aggregated demand for the three groups

b) aggregated forecast for November 2021 using a 3-month average

c) Forecasts for groups of items tend to be more accurate than forecasts for individual items because forecasting errors among items in a group usually have a cancelling effect. Do you agree with this statement? Justify your answer in the space provided.

cutlery cutlery cutlery cutlery toiletries toiletries Toutes toiletries toiletries Stationery Stationery Stationery Stationery Spoon Forks Knives notebooks Tipex Bio Per TISSUES WHITE 180'S stationery bag SUTEILIND T/PAPER 2 PLY 18'S 2 PLY LUX WHITE 185 2 PLY LUX WHITE 99 Sroduct group Product Description # # # # *# # # ? % $ $ # # = # # 1450 %8 # % $ # # E n # # # # ## cutlery cutlery cutlery cutlery toiletries toiletries Toutes toiletries toiletries Stationery Stationery Stationery Stationery Spoon Forks Knives notebooks Tipex Bio Per TISSUES WHITE 180'S stationery bag SUTEILIND T/PAPER 2 PLY 18'S 2 PLY LUX WHITE 185 2 PLY LUX WHITE 99 Sroduct group Product Description # # # # *# # # ? % $ $ # # = # # 1450 %8 # % $ # # E n # # # # ##