A You work as a manager in the admission department of company. You were asked by your department head to present and analyze the qualifying test scores of 40 employees who are applying for 5-year benefits. The recorded scores handed - out to you are as follows: 84 81 74 92 80 79 82 85 97 82 89 84 86 85 87 95 90 90 84 93 88 85 86 90 86 89 88 96 92 From this data set, prepare the following: 1. Step - and - leaf display 2. Complete frequency distribution table with 5 class intervals Test Score Tally Frequency Xm Class rf of Class Interval (f) Boundaries B. Directions: The following table gives the frequency distribution of times that clients spent waiting in line for bank transactions. Waiting time (in minutes) Number of clients 0 - 6 20 7 - 13 24 14 -20 18 21 - 27 12 28 - 3 35 - 41 Determine the following: 1. Class size 2. Number of classes 3. Classmark of the third class 4. Lower limit of the fourth class 5. Upper class boundary of the third class 6. Number of clients surveyed 7. Highest frequency B. Class that comprises 30% of the distribution 9. Frequency of clients that wait less than 20 minutes 10. Percentage of clients that wait less than 14 minutes