Appendix - z-score percentile for normal distribution
 
Percentile z-Score Percentile z-Score Percentile z-Score
1 -2.326 34 -0.412 67 0.44
2 -2.054 35 -0.385 68 0.468
3 -1.881 36 -0.358 69 0.496
4 -1.751 37 -0.332 70 0.524
5 -1.645 38 -0.305 71 0.553
6 -1.555 39 -0.279 72 0.583
7 -1.476 40 -0.253 73 0.613
8 -1.405 41 -0.228 74 0.643
9 -1.341 42 -0.202 75 0.674
10 -1.282 43 -0.176 76 0.706
11 -1.227 44 -0.151 77 0.739
12 -1.175 45 -0.126 78 0.772
13 -1.126 46 -0.1 79 0.806
14 -1.08 47 -0.075 80 0.842
15 -1.036 48 -0.05 81 0.878
16 -0.994 49 -0.025 82 0.915
17 -0.954 50 0 83 0.954
18 -0.915 51 0.025 84 0.994
19 -0.878 52 0.05 85 1.036
20 -0.842 53 0.075 86 1.08
21 -0.806 54 0.1 87 1.126
22 -0.772 55 0.126 88 1.175
23 -0.739 56 0.151 89 1.227
24 -0.706 57 0.176 90 1.282
25 -0.674 58 0.202 91 1.341
26 -0.643 59 0.228 92 1.405
27 -0.613 60 0.253 93 1.476
28 -0.583 61 0.279 94 1.555
29 -0.553 62 0.305 95 1.645
30 -0.524 63 0.332 96 1.751
31 -0.496 64 0.358 97 1.881
32 -0.468 65 0.385 98 2.054
33 -0.44 66 0.412 99 2.326