Appendix: Critical Values Tables
433
Appendix: Critical Value Tables
Table A.1: Normal Critical Values for Confidence Levels
Table A.2: Critical Values for t-Interval
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Appendix: Critical Value Tables, Lecture notes of Statistics
Appendix: Critical Values Tables. 434. Table A.1: Normal Critical Values for Confidence Levels. Confidence Level, C. Critical Value, zc.
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Appendix: Critical Value Tables
Table A.1: Normal Critical Values for Confidence Levels Table A.2: Critical Values for t-Interval
Table A.1: Normal Critical Values for Confidence Levels Confidence Level, C Critical Value, zc 99% 2. 98% 2. 95% 1. 90% 1. 80% 1. Critical Values for Zc created using Microsoft Excel
Degrees of
Degrees of
- 1 3.078 6.314 12.706 31.821 63. Freedom ( df ) 80% 90% 95% 98% 99%
- 2 1.886 2.920 4.303 6.965 9.
- 3 1.638 2.353 3.182 4.541 5.
- 4 1.533 2.132 2.776 3.747 4.
- 5 1.476 2.015 2.571 3.365 4.
- 6 1.440 1.943 2.447 3.143 3.
- 7 1.415 1.895 2.365 2.998 3.
- 8 1.397 1.860 2.306 2.896 3.
- 9 1.383 1.833 2.262 2.821 3.
- 10 1.372 1.812 2.228 2.764 3.
- 11 1.363 1.796 2.201 2.718 3.
- 12 1.356 1.782 2.179 2.681 3.
- 13 1.350 1.771 2.160 2.650 3.
- 14 1.345 1.761 2.145 2.624 2.
- 15 1.341 1.753 2.131 2.602 2.
- 16 1.337 1.746 2.120 2.583 2.
- 17 1.333 1.740 2.110 2.567 2.
- 18 1.330 1.734 2.101 2.552 2.
- 19 1.328 1.729 2.093 2.539 2.
- 20 1.325 1.725 2.086 2.528 2.
- 21 1.323 1.721 2.080 2.518 2.
- 22 1.321 1.717 2.074 2.508 2.
- 23 1.319 1.714 2.069 2.500 2.
- 24 1.318 1.711 2.064 2.492 2.
- 25 1.316 1.708 2.060 2.485 2.
- 26 1.315 1.706 2.056 2.479 2.
- 27 1.314 1.703 2.052 2.473 2.
- 28 1.313 1.701 2.048 2.467 2.
- 29 1.311 1.699 2.045 2.462 2.
- 30 1.310 1.697 2.042 2.457 2.
- 31 1.309 1.696 2.040 2.453 2.
- 32 1.309 1.694 2.037 2.449 2.
- 33 1.308 1.692 2.035 2.445 2.
- 34 1.307 1.691 2.032 2.441 2.
- 35 1.306 1.690 2.030 2.438 2.
- 36 1.306 1.688 2.028 2.434 2.
- 37 1.305 1.687 2.026 2.431 2.
- 38 1.304 1.686 2.024 2.429 2.
- 39 1.304 1.685 2.023 2.426 2.
- 40 1.303 1.684 2.021 2.423 2.
- 41 1.303 1.683 2.020 2.421 2. Freedom ( df ) 80% 90% 95% 98% 99%
- 42 1.302 1.682 2.018 2.418 2.
- 43 1.302 1.681 2.017 2.416 2.
- 44 1.301 1.680 2.015 2.414 2.
- 45 1.301 1.679 2.014 2.412 2.
- 46 1.300 1.679 2.013 2.410 2.
- 47 1.300 1.678 2.012 2.408 2.
- 48 1.299 1.677 2.011 2.407 2.
- 49 1.299 1.677 2.010 2.405 2.
- 50 1.299 1.676 2.009 2.403 2.
- 51 1.298 1.675 2.008 2.402 2.
- 52 1.298 1.675 2.007 2.400 2.
- 53 1.298 1.674 2.006 2.399 2.
- 54 1.297 1.674 2.005 2.397 2.
- 55 1.297 1.673 2.004 2.396 2.
- 56 1.297 1.673 2.003 2.395 2.
- 57 1.297 1.672 2.002 2.394 2.
- 58 1.296 1.672 2.002 2.392 2.
- 59 1.296 1.671 2.001 2.391 2.
- 60 1.296 1.671 2.000 2.390 2.
- 61 1.296 1.670 2.000 2.389 2.
- 62 1.295 1.670 1.999 2.388 2.
- 63 1.295 1.669 1.998 2.387 2.
- 64 1.295 1.669 1.998 2.386 2.
- 65 1.295 1.669 1.997 2.385 2.
- 66 1.295 1.668 1.997 2.384 2.
- 67 1.294 1.668 1.996 2.383 2.
- 68 1.294 1.668 1.995 2.382 2.
- 69 1.294 1.667 1.995 2.382 2.
- 70 1.294 1.667 1.994 2.381 2.
- 71 1.294 1.667 1.994 2.380 2.
- 72 1.293 1.666 1.993 2.379 2.
- 73 1.293 1.666 1.993 2.379 2.
- 74 1.293 1.666 1.993 2.378 2.
- 75 1.293 1.665 1.992 2.377 2.
- 76 1.293 1.665 1.992 2.376 2.
- 77 1.293 1.665 1.991 2.376 2.
- 78 1.292 1.665 1.991 2.375 2.
- 79 1.292 1.664 1.990 2.374 2.
- 80 1.292 1.664 1.990 2.374 2.
- 81 1.292 1.664 1.990 2.373 2.
- 82 1.292 1.664 1.989 2.373 2.
- 83 1.292 1.663 1.989 2.372 2.
- 84 1.292 1.663 1.989 2.372 2. Freedom ( df ) 80% 90% 95% 98% 99%
- 85 1.292 1.663 1.988 2.371 2.
- 86 1.291 1.663 1.988 2.370 2.
- 87 1.291 1.663 1.988 2.370 2.
- 88 1.291 1.662 1.987 2.369 2.
- 89 1.291 1.662 1.987 2.369 2.
- 90 1.291 1.662 1.987 2.368 2.
- 91 1.291 1.662 1.986 2.368 2.
- 92 1.291 1.662 1.986 2.368 2.
- 93 1.291 1.661 1.986 2.367 2.
- 94 1.291 1.661 1.986 2.367 2.
- 95 1.291 1.661 1.985 2.366 2.
- 96 1.290 1.661 1.985 2.366 2.
- 97 1.290 1.661 1.985 2.365 2.
- 98 1.290 1.661 1.984 2.365 2.
- 99 1.290 1.660 1.984 2.365 2.
- 100 1.290 1.660 1.984 2.364 2.
- 101 1.290 1.660 1.984 2.364 2.
- 102 1.290 1.660 1.983 2.363 2.
- 103 1.290 1.660 1.983 2.363 2.
- 104 1.290 1.660 1.983 2.363 2.
- 105 1.290 1.659 1.983 2.362 2.