Tolerance factors (K) for one-sided normal tolerance intervals with probability level (confidence factor) Y = 0.95 and coverage P = 95%. n = number of samples collected.
n | K | n | K |
3 | 7.655 | 150 | 1.868 |
4 | 5.145 | 175 | 1.850 |
5 | 4.202 | 200 | 1.836 |
6 | 3.707 | 225 | 1.824 |
7 | 3.399 | 250 | 1.814 |
8 | 3.188 | 275 | 1.806 |
9 | 3.031 | 300 | 1.799 |
10 | 2.911 | 325 | 1.792 |
11 | 2.815 | 350 | 1.787 |
12 | 2.736 | 375 | 1.782 |
13 | 2.670 | 400 | 1.777 |
14 | 2.614 | 425 | 1.773 |
15 | 2.566 | 450 | 1.769 |
16 | 2.523 | 475 | 1.766 |
17 | 2.486 | 500 | 1.763 |
18 | 2.543 | 525 | 1.760 |
19 | 2.423 | 550 | 1.757 |
20 | 2.396 | 575 | 1.754 |
21 | 2.371 | 600 | 1.752 |
22 | 2.350 | 625 | 1.750 |
23 | 2.329 | 650 | 1.748 |
24 | 2.309 | 675 | 1.746 |
25 | 2.292 | 700 | 1.744 |
30 | 2.220 | 725 | 1.742 |
35 | 2.166 | 750 | 1.740 |
40 | 2.126 | 775 | 1.739 |
45 | 2.092 | 800 | 1.737 |
50 | 2.065 | 825 | 1.736 |
55 | 2.036 | 850 | 1.734 |
60 | 2.017 | 875 | 1.733 |
65 | 2.000 | 900 | 1.732 |
70 | 1.986 | 925 | 1.731 |
75 | 1.972 | 950 | 1.729 |
100 | 1.924 | 975 | 1.728 |
125 | 1.891 | 1000 | 1.727 |
Ill. Admin. Code tit. 35, pt. 742, subpt. L, app A, tbl. B