Question 3 (25 Marks) a) Describe the difference between descriptive and inferential statistics. Include examples of each kind in your answer. b) Name the four categories of ICT products that might be designed and created as part of ICT research and provide an example of each. c) List three of the common methods of data collection used in case study research, and explain the importance of using multiple data collection methods. d) What is action research? Include a discussion of where its use is appropriate and any problems with its use