QUESTION ONE: [25MARKS] a) Isaac has conducted a correlational study to investigate the relationship between how important a person thinks appearance is and how much they spend on clothes each month. The first variable was self-rating of the importance of appearance measured on a ten point scale (where 1 = not important and 10 = extremely important). The second variable was amount of money spent on clothes each month' measured by asking people to estimate to the nearest five pounds how much they spent in a typical month. The results are in the table below: Participants (initials) Self-rating of importance if appearance Amount spent on clothes each month HA 6 80 EP 8 120 SF 9 100 PR 3 110 MS 7 75 JP 4 35 AG 3 15 BF 5 50 i. Explain what is meant by a negative correlation. (01mark) ii. Explain what is meant by a positive correlation. (01mark) iii. Explain what is meant by no correlation. (01mark) iv. Describe how data is presented in a scatter graph. (02marks) V. Sketch an appropriately labelled scatter graph displaying the results of this study. (04marks) vi. What could this graph tell you about the relationship between the two variables? (03marks) vii. Outline two conclusions from the data in this scatter graph. (04marks) viii. Explain what is meant by the descriptive statistic called the mean. (01marks) ix. When would the descriptive statistic called the median' be more appropriate and why? (04marks) X. Which inferential (non parametric) test would you use to analyze the data - give reasons for your choice (03marks) xi. What is the range for the amount of money spent on clothes each month? (01marks)