Estimating Percent of Lot Within Limits (Standard Deviation Method) Negative Values of Q U or Q L
Percent Within Limits n=3 n=4 n=5 n=6 n=7
15 1.0286 1.0501 1.0469 1.0437 1.0413 14 1.0446 1.0801 1.0819 1.0813 1.0798 13 1.0597 1.1101 1.1174 1.1196 1.1202 12 1.0732 1.1401 1.1538 1.1592 1.1615 11 1.0864 1.1701 1.1911 1.2001 1.2045
10 1.0977 1.2001 1.2293 1.2421 1.2494 9 1.1087 1.2301 1.2683 1.2866 1.2966 8 1.1170 1.2601 1.3091 1.3328 1.3465 7 1.1263 1.2901 1.3510 1.3813 1.3990 6 1.1330 1.3201 1.3946 1.4332 1.4562
5 1.1367 1.3501 1.4408 1.4892 1.5184 4 1.1402 1.3801 1.4898 1.5500 1.5868 3 1.1439 1.4101 1.5428 1.6190 1.6662 2 1.1476 1.4401 1.6018 1.6990 1.7615 1 1.1510 1.4701 1.6719 1.8016 1.8893
Estimating Percent of Lot Within Limits (Standard Deviation Method) Positive Values of Q U or Q L
Percent Within Limits n=3 n=4 n=5 n=6 n=7
99 1.1510 1.4701 1.6719 1.8016 1.8893 98 1.1476 1.4401 1.6018 1.6990 1.7615 97 1.1439 1.4101 1.5428 1.6190 1.6662 96 1.1402 1.3801 1.4898 1.5500 1.5868 95 1.1367 1.3501 1.4408 1.4892 1.5184
94 1.1330 1.3201 1.3946 1.4332 1.4562 93 1.1263 1.2901 1.3510 1.3813 1.3990 92 1.1170 1.2601 1.3091 1.3328 1.3465 91 1.1087 1.2301 1.2683 1.2866 1.2966 90 1.0977 1.2001 1.2293 1.2421 1.2494
89 1.0864 1.1701 1.1911 1.2001 1.2045 88 1.0732 1.1401 1.1538 1.1592 1.1615 87 1.0596 1.1101 1.1174 1.1196 1.1202 86 1.0446 1.0801 1.0819 1.0813 1.0798 85 1.0286 1.0501 1.0469 1.0437 1.0413
84 1.0118 1.0201 1.0125 1.0073 1.0032 83 0.9940 0.9901 0.9782 0.9718 0.9673 82 0.9748 0.9601 0.9453 0.9367 0.9315 81 0.9550 0.9301 0.9123 0.9028 0.8966 80 0.9342 0.9001 0.8798 0.8693 0.8626
79 0.9122 0.8701 0.8479 0.8363 0.8290 78 0.8896 0.8401 0.8161 0.8040 0.7964 77 0.8661 0.8101 0.7846 0.7717 0.7642 76 0.8416 0.7801 0.7535 0.7403 0.7320 75 0.8164 0.7501 0.7227 0.7093 0.7011
74 0.7905 0.7201 0.6919 0.6782 0.6703 73 0.7635 0.6901 0.6619 0.6480 0.6395 72 0.7360 0.6601 0.6315 0.6178 0.6095 71 0.7076 0.6301 0.6018 0.5880 0.5846 70 0.6788 0.6001 0.5717 0.5586 0.5506
69 0.6490 0.5701 0.5424 0.5292 0.5211 68 0.6187 0.5401 0.5131 0.5002 0.4925 67 0.5878 0.5101 0.4837 0.4712 0.4639 66 0.5564 0.4800 0.4544 0.4426 0.4354 65 0.5242 0.4500 0.4254 0.4140 0.4073