The following are the scores of 27 students in Mathematics in the Modern World 12 18 20 10 20 22 16 10 16 15 10 17 12 10 15 12 10 15 23 14 9 20 23 10 21 10 12 1. Convert scores of 10 and 20 to z-scores 2. What percent of the class obtained scores higher than 20 3. How many students obtained a score less than 20? 4. How many students scored between 10 and 20? Used this table to answer no. 2 - 4. Refer to zscore pdf under measures central tendency ppt Appendix A Areas Under the Normal Curve 0.05 0199 0.00 0359 00 021 02 0.00 0000 030 0793 1170 0.01 0040 0438 0833 0.02 Dono 0478 07 0.03 0120 0517 0010 0754 0.04 0100 0557 0948 0.00 0230 0036 1026 1406 1772 0.07 0279 0675 1064 1443 180B 0.00 0319 0714 1103 1480 1844 O987 1368 1736 1512 (1217 1591 1620 1879 1864 1700 2157 2190 1915 2257 2580 2517 0.6 0.7 08 0.9 1950 2291 2611 2910 3186 1985 2324 2542 2030 3212 2010 2357 2673 2967 3230 2054 2389 2704 2995 3264 20BB 2422 2734 3023 3289 2123 2454 2754 3051 3315 2794 3078 3340 2823 3106 3365 2224 2549 2852 3133 3389 3159 1.0 3:13 3543 3461 3686 12 1.3 3438 3565 3869 4049 4207 3849 4032 4192 3485 370B 3907 4082 4236 3888 4066 4222 3508 3729 3925 -4099 -4251 - 3577 3790 3980 3531 3749 .3944 4115 4265 3554 3770 3962 4131 4279 3599 3810 3997 4162 4306 3621 3830 4015 4177 4319 4292 1.5 1.8 4357 4332 4452 4554 4641 4713 .4345 4463 4564 4649 4719 4370 4484 4582 4664 4732 4383 4495 4591 4671 4738 4394 4505 4599 4678 4744 4406 4515 4608 4686 4750 1.8 1.9 4418 4525 4616 4693 4756 4429 4535 4625 4699 4761 441 4545 4633 4706 4767 4656 4726 20 4772 4821 4861 4893 4918 2.2 2.3 2.4 4778 4826 4864 4896 4920 4783 4830 4868 4898 4922 4808 4850 4788 4834 4871 4901 4925 4793 4838 4875 4904 4927 4798 4842 4878 4906 4803 4846 4881 4909 4931 4812 4854 4887 4913 4934 4817 4857 4890 4916 4936 4929 4911 4932 4945 25 26 2.7 28 29 4940 4955 4966 4952 4938 4953 4955 4974 4981 4987 4941 4956 4067 4976 4982 4951 4963 4957 4968 4977 4983 4988 4959 4969 4977 4984 4946 4960 4970 4978 4084 4989 4949 4962 4972 4979 4985 4989 4961 4971 4979 4985 4989 4082 4987 3.0 4973 4980 4986 4990 4964 4974 4981 4986 4990 232