QUESTION 1 (8 Marks) A research team from UiTM Puncak Alam conducted a survey on their undergraduates to determine their average monthly expenditure on foods. The list of all 1500 students' names arranged alphabetically by faculty was obtained. A random sample of 150 students was selected from each faculty and information on gender, age, monthly expenditure on foods and types of foods purchased by the students were collected. a) What is the population and sample for the above study? (2 marks) b) What is the sampling frame for the above study? (1 mark) c) Suggest the suitable sampling method for the above study. (1 mark) d) Name any TWO (2) variables from the above study. For each variable chosen, state its type of variable and the scale of measurement (4 marks)