Task 3: Data Types To better understand its target consumers and strengthen its position in the market, the kitchen appliances retailer seeks to survey its customers to gain insights into key consumer characteristics, such as demographic profiles and lifestyle preferences. However, before outsourcing the data collection fieldwork, the retailer seeks clarification on data types, as outlined in the requirements below. Required for Task 3 a. With reference to examples relevant to the retailer's information needs, discuss the differences between cross-sectional data and time series data. b. State whether cross-sectional data,time series data or both types of data should be collected to gain insights into the demographic profile and lifestyle preferences of its customers. Justify your answer (Use credible sources. The citation and reference must be credited using the Harvardmethod). Task 4: Networking The retailer has seen a shift in the way in which consumers purchase items, such as kitchen appliances. Online retailing now accounts for over 80% of their sales and, to reflect this change, the retailer has decided to convert some of its retail space into warehouse space. This conversion project consists of 10 activities. For example, Activity C takes 3 weeks to complete and can only be started after ActivityA has been completed. Information on the 10 activities is outlined in Table 3 below. Precedence Table Required for Task 4 With reference to the precedence table above, construct a network diagram by going through the: a. Forward and backward. passes b. Identify the critical path and duration of the project. c. Comment on the difference between critical activities and non-critical activities. Note: Draw your network diagram in Excel. The network diagram needs to be copied into your Word file