MAT1521esti Page 3 of 4 Search Solve the problem. 11) The test scores of 30 students are listed below. Which number could be the 30th percentile? 31 41 45 48 52 55 56 56 63 65 67 67 69 70 70 74 80 81 83 85 85 87 90 A) 56 75 78 79 79 92 95 99 B) 64 C) 67 D) 90 11) Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if its z-score is less than -2.00 or greater than 2.00. Round the z-score to the nearest t if necessary. 12) A body temperature of 96.5 F given that human body temperatures have a mean of 98.20 F and a standard deviation of 0.62. A) -2.8; not unusual C) -1.7; not usual B) -2.8; unusual D) 2.8; unusual For problems 13-16 show your work. Find the indicated measure. 13) The test scores of 40 students are listed below. Find P85. 30 35 43 44 47 48 54 55 56 57 59 62 63 65 66 68 69 69 71 72 72 73 74 76 77 77 78 79 80 81 81 82 83 85 89 92 93 94 97 98 12)