Part D: Application (16 marks) Show your work for FULL marks b. Continuing with data from question 3 from Part C: Are there any outliers? Justify your answer *hint use IQR calculations to justify* (4 marks) c. Would it be better to use the mean and standard deviation or the median and IQR to describe the center and spread of this distribution? Why? (2 marks) 1. The scores on a real estate licensing examination given in a particular state are normally distributed with a standard deviation of 70. What is the mean test score if 25% of the applicants scored above 475? (4 marks) 2. A manufacturer of rechargeable batteries tests 10 batteries at random and records the time it takes, in minutes, to drain each battery after a full charge has been applied. 195, 203, 177, 186, 191, 225, 216, 202, 197, 21 For the data above find the following to 2 decimal places: a. the range (1 mark) h. the mean (1 mark) c. the variance (3 marks) d. the standard deviation (1 mark}