t分布在不同置信概率p与自由度v的tp(v)值表
置信区间t值表
置信区间t值表
置信区间t 值表是在统计学中用于计算t 分布置信区间的参考表。
t 分布是用于小样本情况下估计总体均值的概率分布,通常与样本大小和所需置信水平有关。
在构建置信区间时,t 值表提供了对应于不同自由度和置信水平的t 分布的关键值。
t 值表示了t 分布中某一点的位置,与标准正态分布的z 值类似。
在t 值表中,通常列出了不同自由度(degrees of freedom,df)和置信水平(confidence level)下的t 值。
用户可以根据他们的样本大小和置信水平找到适当的t 值,从而构建置信区间。
以下是一个简化的t 值表示例:
df \ Confidence Level 90% 95% 99%
5 2.02 2.57 4.03
10 1.83 2.26 3.17
20 1.72 2.09 2.85
30 1.70 2.04 2.75
在这个示例中,每一行表示自由度,每一列表示不同的置信水平。
用户可以根据实际自由度和置信水平交叉点的t 值来计算置信区间。
在实际应用中,可以使用统计软件或在线计算工具来获取更精确的t 值。
t 值表仅提供了一种手动计算的参考方法。
t分布表精确完整图
t分布在概率论和统计学中,t-分布(t-distribution)用于根据小样本来估计呈正态分布且方差未知的总体的均值。
如果总体方差已知(例如在样本数量足够多时),则应该用正态分布来估计总体均值。
t分布曲线形态与n(确切地说与自由度df)大小有关。
与标准正态分布曲线相比,自由度df越小,t分布曲线愈平坦,曲线中间愈低,曲线双侧尾部翘得愈高;自由度df 愈大,t分布曲线愈接近正态分布曲线,当自由度df=∞时,t分布曲线为标准正态分布曲线。
设随机变量T ∼ t n, 则其密度函数为:t n(x)=Γ(n+12)Γ(n2)√nπ(1+x2)−n+12,−∞<x<∞该密度函数的图形如下:t分布表如下:n | α0.250.10 0.050.0250.010.005 1 1.0000 3.0777 6.3138 12.7062 31.8205 63.6567 20.8165 1.8856 2.9200 4.3027 6.9646 9.9248 30.7649 1.6377 2.3534 3.1824 4.5407 5.8409 40.7407 1.5332 2.1318 2.7764 3.7469 4.6041 50.7267 1.4759 2.0150 2.5706 3.3649 4.0321 60.7176 1.4398 1.9432 2.4469 3.1427 3.7074 70.7111 1.4149 1.8946 2.3646 2.9980 3.4995 80.7064 1.3968 1.8595 2.3060 2.8965 3.3554 90.7027 1.3830 1.8331 2.2622 2.8214 3.2498 100.6998 1.3722 1.8125 2.2281 2.7638 3.1693 110.6974 1.3634 1.7959 2.2010 2.7181 3.1058 120.6955 1.3562 1.7823 2.1788 2.6810 3.0545 130.6938 1.3502 1.7709 2.1604 2.6503 3.0123 140.6924 1.3450 1.7613 2.1448 2.6245 2.9768 150.6912 1.3406 1.7531 2.1314 2.6025 2.9467160.6901 1.3368 1.7459 2.1199 2.5835 2.9208 170.6892 1.3334 1.7396 2.1098 2.5669 2.8982 180.6884 1.3304 1.7341 2.1009 2.5524 2.8784 190.6876 1.3277 1.7291 2.0930 2.5395 2.8609 200.6870 1.3253 1.7247 2.0860 2.5280 2.8453 210.6864 1.3232 1.7207 2.0796 2.5176 2.8314 220.6858 1.3212 1.7171 2.0739 2.5083 2.8188 230.6853 1.3195 1.7139 2.0687 2.4999 2.8073 240.6848 1.3178 1.7109 2.0639 2.4922 2.7969 250.6844 1.3163 1.7081 2.0595 2.4851 2.7874 260.6840 1.3150 1.7056 2.0555 2.4786 2.7787 270.6837 1.3137 1.7033 2.0518 2.4727 2.7707 280.6834 1.3125 1.7011 2.0484 2.4671 2.7633 290.6830 1.3114 1.6991 2.0452 2.4620 2.7564 300.6828 1.3104 1.6973 2.0423 2.4573 2.7500 310.6825 1.3095 1.6955 2.0395 2.4528 2.7440 320.6822 1.3086 1.6939 2.0369 2.4487 2.7385 330.6820 1.3077 1.6924 2.0345 2.4448 2.7333 340.6818 1.3070 1.6909 2.0322 2.4411 2.7284 350.6816 1.3062 1.6896 2.0301 2.4377 2.7238 360.6814 1.3055 1.6883 2.0281 2.4345 2.7195 370.6812 1.3049 1.6871 2.0262 2.4314 2.7154 380.6810 1.3042 1.6860 2.0244 2.4286 2.7116 390.6808 1.3036 1.6849 2.0227 2.4258 2.7079 400.6807 1.3031 1.6839 2.0211 2.4233 2.7045 410.6805 1.3025 1.6829 2.0195 2.4208 2.7012 420.6804 1.3020 1.6820 2.0181 2.4185 2.6981 430.6802 1.3016 1.6811 2.0167 2.4163 2.6951 440.6801 1.3011 1.6802 2.0154 2.4141 2.6923 450.6800 1.3006 1.6794 2.0141 2.4121 2.6896 460.6799 1.3002 1.6787 2.0129 2.4102 2.6870 470.6797 1.2998 1.6779 2.0117 2.4083 2.6846 480.6796 1.2994 1.6772 2.0106 2.4066 2.6822 490.6795 1.2991 1.6766 2.0096 2.4049 2.6800 500.6794 1.2987 1.6759 2.0086 2.4033 2.6778 510.6793 1.2984 1.6753 2.0076 2.4017 2.6757 520.6792 1.2980 1.6747 2.0066 2.4002 2.6737 530.6791 1.2977 1.6741 2.0057 2.3988 2.6718 540.6791 1.2974 1.6736 2.0049 2.3974 2.6700 550.6790 1.2971 1.6730 2.0040 2.3961 2.6682 560.6789 1.2969 1.6725 2.0032 2.3948 2.6665 570.6788 1.2966 1.6720 2.0025 2.3936 2.6649 580.6787 1.2963 1.6716 2.0017 2.3924 2.6633 590.6787 1.2961 1.6711 2.0010 2.3912 2.6618600.6786 1.2958 1.6706 2.0003 2.3901 2.6603 610.6785 1.2956 1.6702 1.9996 2.3890 2.6589 620.6785 1.2954 1.6698 1.9990 2.3880 2.6575 630.6784 1.2951 1.6694 1.9983 2.3870 2.6561 640.6783 1.2949 1.6690 1.9977 2.3860 2.6549 650.6783 1.2947 1.6686 1.9971 2.3851 2.6536 660.6782 1.2945 1.6683 1.9966 2.3842 2.6524 670.6782 1.2943 1.6679 1.9960 2.3833 2.6512 680.6781 1.2941 1.6676 1.9955 2.3824 2.6501 690.6781 1.2939 1.6672 1.9949 2.3816 2.6490 700.6780 1.2938 1.6669 1.9944 2.3808 2.6479 710.6780 1.2936 1.6666 1.9939 2.3800 2.6469 720.6779 1.2934 1.6663 1.9935 2.3793 2.6459 730.6779 1.2933 1.6660 1.9930 2.3785 2.6449 740.6778 1.2931 1.6657 1.9925 2.3778 2.6439 750.6778 1.2929 1.6654 1.9921 2.3771 2.6430 760.6777 1.2928 1.6652 1.9917 2.3764 2.6421 770.6777 1.2926 1.6649 1.9913 2.3758 2.6412 780.6776 1.2925 1.6646 1.9908 2.3751 2.6403 790.6776 1.2924 1.6644 1.9905 2.3745 2.6395 800.6776 1.2922 1.6641 1.9901 2.3739 2.6387 810.6775 1.2921 1.6639 1.9897 2.3733 2.6379 820.6775 1.2920 1.6636 1.9893 2.3727 2.6371 830.6775 1.2918 1.6634 1.9890 2.3721 2.6364 840.6774 1.2917 1.6632 1.9886 2.3716 2.6356 850.6774 1.2916 1.6630 1.9883 2.3710 2.6349 860.6774 1.2915 1.6628 1.9879 2.3705 2.6342 870.6773 1.2914 1.6626 1.9876 2.3700 2.6335 880.6773 1.2912 1.6624 1.9873 2.3695 2.6329 890.6773 1.2911 1.6622 1.9870 2.3690 2.6322 900.6772 1.2910 1.6620 1.9867 2.3685 2.6316 910.6772 1.2909 1.6618 1.9864 2.3680 2.6309 920.6772 1.2908 1.6616 1.9861 2.3676 2.6303 930.6771 1.2907 1.6614 1.9858 2.3671 2.6297 940.6771 1.2906 1.6612 1.9855 2.3667 2.6291 950.6771 1.2905 1.6611 1.9853 2.3662 2.6286 960.6771 1.2904 1.6609 1.9850 2.3658 2.6280 970.6770 1.2903 1.6607 1.9847 2.3654 2.6275 980.6770 1.2902 1.6606 1.9845 2.3650 2.6269 990.6770 1.2902 1.6604 1.9842 2.3646 2.6264 1000.6770 1.2901 1.6602 1.9840 2.3642 2.6259 1010.6769 1.2900 1.6601 1.9837 2.3638 2.6254 1020.6769 1.2899 1.6599 1.9835 2.3635 2.6249 1030.6769 1.2898 1.6598 1.9833 2.3631 2.62441040.6769 1.2897 1.6596 1.9830 2.3627 2.6239 1050.6768 1.2897 1.6595 1.9828 2.3624 2.6235 1060.6768 1.2896 1.6594 1.9826 2.3620 2.6230 1070.6768 1.2895 1.6592 1.9824 2.3617 2.6226 1080.6768 1.2894 1.6591 1.9822 2.3614 2.6221 1090.6767 1.2894 1.6590 1.9820 2.3610 2.6217 1100.6767 1.2893 1.6588 1.9818 2.3607 2.6213 1110.6767 1.2892 1.6587 1.9816 2.3604 2.6208 1120.6767 1.2892 1.6586 1.9814 2.3601 2.6204 1130.6767 1.2891 1.6585 1.9812 2.3598 2.6200 1140.6766 1.2890 1.6583 1.9810 2.3595 2.6196 1150.6766 1.2890 1.6582 1.9808 2.3592 2.6193 1160.6766 1.2889 1.6581 1.9806 2.3589 2.6189 1170.6766 1.2888 1.6580 1.9804 2.3586 2.6185 1180.6766 1.2888 1.6579 1.9803 2.3584 2.6181 1190.6766 1.2887 1.6578 1.9801 2.3581 2.6178 1200.6765 1.2886 1.6577 1.9799 2.3578 2.6174 1210.6765 1.2886 1.6575 1.9798 2.3576 2.6171 1220.6765 1.2885 1.6574 1.9796 2.3573 2.6167 1230.6765 1.2885 1.6573 1.9794 2.3570 2.6164 1240.6765 1.2884 1.6572 1.9793 2.3568 2.6161 1250.6765 1.2884 1.6571 1.9791 2.3565 2.6157 1260.6764 1.2883 1.6570 1.9790 2.3563 2.6154 1270.6764 1.2883 1.6569 1.9788 2.3561 2.6151 1280.6764 1.2882 1.6568 1.9787 2.3558 2.6148 1290.6764 1.2881 1.6568 1.9785 2.3556 2.6145 1300.6764 1.2881 1.6567 1.9784 2.3554 2.6142 1310.6764 1.2880 1.6566 1.9782 2.3552 2.6139 1320.6764 1.2880 1.6565 1.9781 2.3549 2.6136 1330.6763 1.2879 1.6564 1.9780 2.3547 2.6133 1340.6763 1.2879 1.6563 1.9778 2.3545 2.6130 1350.6763 1.2879 1.6562 1.9777 2.3543 2.6127 1360.6763 1.2878 1.6561 1.9776 2.3541 2.6125 1370.6763 1.2878 1.6561 1.9774 2.3539 2.6122 1380.6763 1.2877 1.6560 1.9773 2.3537 2.6119 1390.6763 1.2877 1.6559 1.9772 2.3535 2.6117 1400.6762 1.2876 1.6558 1.9771 2.3533 2.6114 1410.6762 1.2876 1.6557 1.9769 2.3531 2.6111 1420.6762 1.2875 1.6557 1.9768 2.3529 2.6109 1430.6762 1.2875 1.6556 1.9767 2.3527 2.6106 1440.6762 1.2875 1.6555 1.9766 2.3525 2.6104 1450.6762 1.2874 1.6554 1.9765 2.3523 2.6102 1460.6762 1.2874 1.6554 1.9763 2.3522 2.6099 1470.6762 1.2873 1.6553 1.9762 2.3520 2.60971480.6762 1.2873 1.6552 1.9761 2.3518 2.6095 1490.6761 1.2873 1.6551 1.9760 2.3516 2.6092 1500.6761 1.2872 1.6551 1.9759 2.3515 2.6090 1510.6761 1.2872 1.6550 1.9758 2.3513 2.6088 1520.6761 1.2871 1.6549 1.9757 2.3511 2.6086 1530.6761 1.2871 1.6549 1.9756 2.3510 2.6083 1540.6761 1.2871 1.6548 1.9755 2.3508 2.6081 1550.6761 1.2870 1.6547 1.9754 2.3506 2.6079 1560.6761 1.2870 1.6547 1.9753 2.3505 2.6077 1570.6761 1.2870 1.6546 1.9752 2.3503 2.6075 1580.6760 1.2869 1.6546 1.9751 2.3502 2.6073 1590.6760 1.2869 1.6545 1.9750 2.3500 2.6071 1600.6760 1.2869 1.6544 1.9749 2.3499 2.6069 1610.6760 1.2868 1.6544 1.9748 2.3497 2.6067 1620.6760 1.2868 1.6543 1.9747 2.3496 2.6065 1630.6760 1.2868 1.6543 1.9746 2.3494 2.6063 1640.6760 1.2867 1.6542 1.9745 2.3493 2.6061 1650.6760 1.2867 1.6541 1.9744 2.3492 2.6060 1660.6760 1.2867 1.6541 1.9744 2.3490 2.6058 1670.6760 1.2866 1.6540 1.9743 2.3489 2.6056 1680.6760 1.2866 1.6540 1.9742 2.3487 2.6054 1690.6759 1.2866 1.6539 1.9741 2.3486 2.6052 1700.6759 1.2866 1.6539 1.9740 2.3485 2.6051 1710.6759 1.2865 1.6538 1.9739 2.3484 2.6049 1720.6759 1.2865 1.6538 1.9739 2.3482 2.6047 1730.6759 1.2865 1.6537 1.9738 2.3481 2.6045 1740.6759 1.2864 1.6537 1.9737 2.3480 2.6044 1750.6759 1.2864 1.6536 1.9736 2.3478 2.6042 1760.6759 1.2864 1.6536 1.9735 2.3477 2.6041 1770.6759 1.2864 1.6535 1.9735 2.3476 2.6039 1780.6759 1.2863 1.6535 1.9734 2.3475 2.6037 1790.6759 1.2863 1.6534 1.9733 2.3474 2.6036 1800.6759 1.2863 1.6534 1.9732 2.3472 2.6034 1810.6758 1.2862 1.6533 1.9732 2.3471 2.6033 1820.6758 1.2862 1.6533 1.9731 2.3470 2.6031 1830.6758 1.2862 1.6532 1.9730 2.3469 2.6030 1840.6758 1.2862 1.6532 1.9729 2.3468 2.6028 1850.6758 1.2861 1.6531 1.9729 2.3467 2.6027 1860.6758 1.2861 1.6531 1.9728 2.3466 2.6025 1870.6758 1.2861 1.6530 1.9727 2.3465 2.6024 1880.6758 1.2861 1.6530 1.9727 2.3463 2.6022 1890.6758 1.2860 1.6530 1.9726 2.3462 2.6021 1900.6758 1.2860 1.6529 1.9725 2.3461 2.6020 1910.6758 1.2860 1.6529 1.9725 2.3460 2.60181920.6758 1.2860 1.6528 1.9724 2.3459 2.6017 1930.6758 1.2860 1.6528 1.9723 2.3458 2.6015 1940.6758 1.2859 1.6527 1.9723 2.3457 2.6014 1950.6757 1.2859 1.6527 1.9722 2.3456 2.6013 1960.6757 1.2859 1.6527 1.9721 2.3455 2.6011 1970.6757 1.2859 1.6526 1.9721 2.3454 2.6010 1980.6757 1.2858 1.6526 1.9720 2.3453 2.6009 1990.6757 1.2858 1.6525 1.9720 2.3452 2.6008 2000.6757 1.2858 1.6525 1.9719 2.3451 2.6006 2010.6757 1.2858 1.6525 1.9718 2.3450 2.6005 2020.6757 1.2858 1.6524 1.9718 2.3449 2.6004 2030.6757 1.2857 1.6524 1.9717 2.3449 2.6003 2040.6757 1.2857 1.6524 1.9717 2.3448 2.6001 2050.6757 1.2857 1.6523 1.9716 2.3447 2.6000 2060.6757 1.2857 1.6523 1.9715 2.3446 2.5999 2070.6757 1.2857 1.6522 1.9715 2.3445 2.5998 2080.6757 1.2856 1.6522 1.9714 2.3444 2.5997 2090.6757 1.2856 1.6522 1.9714 2.3443 2.5996 2100.6757 1.2856 1.6521 1.9713 2.3442 2.5994 2110.6757 1.2856 1.6521 1.9713 2.3442 2.5993 2120.6756 1.2856 1.6521 1.9712 2.3441 2.5992 2130.6756 1.2855 1.6520 1.9712 2.3440 2.5991 2140.6756 1.2855 1.6520 1.9711 2.3439 2.5990 2150.6756 1.2855 1.6520 1.9711 2.3438 2.5989 2160.6756 1.2855 1.6519 1.9710 2.3437 2.5988 2170.6756 1.2855 1.6519 1.9710 2.3437 2.5987 2180.6756 1.2854 1.6519 1.9709 2.3436 2.5986 2190.6756 1.2854 1.6518 1.9709 2.3435 2.5985 2200.6756 1.2854 1.6518 1.9708 2.3434 2.5984 2210.6756 1.2854 1.6518 1.9708 2.3433 2.5983 2220.6756 1.2854 1.6517 1.9707 2.3433 2.5982 2230.6756 1.2854 1.6517 1.9707 2.3432 2.5981 2240.6756 1.2853 1.6517 1.9706 2.3431 2.5980 2250.6756 1.2853 1.6517 1.9706 2.3430 2.5979 2260.6756 1.2853 1.6516 1.9705 2.3430 2.5978 2270.6756 1.2853 1.6516 1.9705 2.3429 2.5977 2280.6756 1.2853 1.6516 1.9704 2.3428 2.5976 2290.6756 1.2853 1.6515 1.9704 2.3427 2.5975 2300.6756 1.2852 1.6515 1.9703 2.3427 2.5974 2310.6756 1.2852 1.6515 1.9703 2.3426 2.5973 2320.6755 1.2852 1.6514 1.9702 2.3425 2.5972 2330.6755 1.2852 1.6514 1.9702 2.3425 2.5971 2340.6755 1.2852 1.6514 1.9702 2.3424 2.5970 2350.6755 1.2852 1.6514 1.9701 2.3423 2.59692360.6755 1.2851 1.6513 1.9701 2.3423 2.5968 2370.6755 1.2851 1.6513 1.9700 2.3422 2.5967 2380.6755 1.2851 1.6513 1.9700 2.3421 2.5966 2390.6755 1.2851 1.6513 1.9699 2.3421 2.5966 2400.6755 1.2851 1.6512 1.9699 2.3420 2.5965 2410.6755 1.2851 1.6512 1.9699 2.3419 2.5964 2420.6755 1.2851 1.6512 1.9698 2.3419 2.5963 2430.6755 1.2850 1.6511 1.9698 2.3418 2.5962 2440.6755 1.2850 1.6511 1.9697 2.3417 2.5961 2450.6755 1.2850 1.6511 1.9697 2.3417 2.5960 2460.6755 1.2850 1.6511 1.9697 2.3416 2.5960 2470.6755 1.2850 1.6510 1.9696 2.3415 2.5959 2480.6755 1.2850 1.6510 1.9696 2.3415 2.5958 2490.6755 1.2850 1.6510 1.9695 2.3414 2.5957 2500.6755 1.2849 1.6510 1.9695 2.3414 2.5956 2510.6755 1.2849 1.6509 1.9695 2.3413 2.5956 2520.6755 1.2849 1.6509 1.9694 2.3412 2.5955 2530.6755 1.2849 1.6509 1.9694 2.3412 2.5954 2540.6755 1.2849 1.6509 1.9693 2.3411 2.5953 2550.6755 1.2849 1.6509 1.9693 2.3411 2.5952 2560.6754 1.2849 1.6508 1.9693 2.3410 2.5952 2570.6754 1.2849 1.6508 1.9692 2.3409 2.5951 2580.6754 1.2848 1.6508 1.9692 2.3409 2.5950 2590.6754 1.2848 1.6508 1.9692 2.3408 2.5949 2600.6754 1.2848 1.6507 1.9691 2.3408 2.5949 2610.6754 1.2848 1.6507 1.9691 2.3407 2.5948 2620.6754 1.2848 1.6507 1.9691 2.3407 2.5947 2630.6754 1.2848 1.6507 1.9690 2.3406 2.5947 2640.6754 1.2848 1.6506 1.9690 2.3406 2.5946 2650.6754 1.2848 1.6506 1.9690 2.3405 2.5945 2660.6754 1.2847 1.6506 1.9689 2.3404 2.5944 2670.6754 1.2847 1.6506 1.9689 2.3404 2.5944 2680.6754 1.2847 1.6506 1.9689 2.3403 2.5943 2690.6754 1.2847 1.6505 1.9688 2.3403 2.5942 2700.6754 1.2847 1.6505 1.9688 2.3402 2.5942 2710.6754 1.2847 1.6505 1.9688 2.3402 2.5941 2720.6754 1.2847 1.6505 1.9687 2.3401 2.5940 2730.6754 1.2847 1.6505 1.9687 2.3401 2.5940 2740.6754 1.2846 1.6504 1.9687 2.3400 2.5939 2750.6754 1.2846 1.6504 1.9686 2.3400 2.5938 2760.6754 1.2846 1.6504 1.9686 2.3399 2.5938 2770.6754 1.2846 1.6504 1.9686 2.3399 2.5937 2780.6754 1.2846 1.6504 1.9685 2.3398 2.5936 2790.6754 1.2846 1.6503 1.9685 2.3398 2.59362800.6754 1.2846 1.6503 1.9685 2.3397 2.5935 2810.6754 1.2846 1.6503 1.9684 2.3397 2.5934 2820.6754 1.2846 1.6503 1.9684 2.3396 2.5934 2830.6754 1.2846 1.6503 1.9684 2.3396 2.5933 2840.6754 1.2845 1.6502 1.9684 2.3395 2.5933 2850.6754 1.2845 1.6502 1.9683 2.3395 2.5932 2860.6753 1.2845 1.6502 1.9683 2.3395 2.5931 2870.6753 1.2845 1.6502 1.9683 2.3394 2.5931 2880.6753 1.2845 1.6502 1.9682 2.3394 2.5930 2890.6753 1.2845 1.6501 1.9682 2.3393 2.5929 2900.6753 1.2845 1.6501 1.9682 2.3393 2.5929 2910.6753 1.2845 1.6501 1.9681 2.3392 2.5928 2920.6753 1.2845 1.6501 1.9681 2.3392 2.5928 2930.6753 1.2844 1.6501 1.9681 2.3391 2.5927 2940.6753 1.2844 1.6501 1.9681 2.3391 2.5927 2950.6753 1.2844 1.6500 1.9680 2.3391 2.5926 2960.6753 1.2844 1.6500 1.9680 2.3390 2.5925 2970.6753 1.2844 1.6500 1.9680 2.3390 2.5925 2980.6753 1.2844 1.6500 1.9680 2.3389 2.5924 2990.6753 1.2844 1.6500 1.9679 2.3389 2.5924 3000.6753 1.2844 1.6499 1.9679 2.3388 2.5923 3010.6753 1.2844 1.6499 1.9679 2.3388 2.5923 3020.6753 1.2844 1.6499 1.9679 2.3388 2.5922 3030.6753 1.2844 1.6499 1.9678 2.3387 2.5922 3040.6753 1.2843 1.6499 1.9678 2.3387 2.5921 3050.6753 1.2843 1.6499 1.9678 2.3386 2.5920 3060.6753 1.2843 1.6498 1.9677 2.3386 2.5920 3070.6753 1.2843 1.6498 1.9677 2.3386 2.5919 3080.6753 1.2843 1.6498 1.9677 2.3385 2.5919 3090.6753 1.2843 1.6498 1.9677 2.3385 2.5918 3100.6753 1.2843 1.6498 1.9676 2.3384 2.5918 3110.6753 1.2843 1.6498 1.9676 2.3384 2.5917 3120.6753 1.2843 1.6498 1.9676 2.3384 2.5917 3130.6753 1.2843 1.6497 1.9676 2.3383 2.5916 3140.6753 1.2843 1.6497 1.9675 2.3383 2.5916 3150.6753 1.2842 1.6497 1.9675 2.3382 2.5915 3160.6753 1.2842 1.6497 1.9675 2.3382 2.5915 3170.6753 1.2842 1.6497 1.9675 2.3382 2.5914 3180.6753 1.2842 1.6497 1.9675 2.3381 2.5914 3190.6753 1.2842 1.6496 1.9674 2.3381 2.5913 3200.6753 1.2842 1.6496 1.9674 2.3381 2.5913 3210.6753 1.2842 1.6496 1.9674 2.3380 2.5912 3220.6753 1.2842 1.6496 1.9674 2.3380 2.5912 3230.6753 1.2842 1.6496 1.9673 2.3379 2.59113240.6752 1.2842 1.6496 1.9673 2.3379 2.5911 3250.6752 1.2842 1.6496 1.9673 2.3379 2.5910 3260.6752 1.2842 1.6495 1.9673 2.3378 2.5910 3270.6752 1.2841 1.6495 1.9672 2.3378 2.5909 3280.6752 1.2841 1.6495 1.9672 2.3378 2.5909 3290.6752 1.2841 1.6495 1.9672 2.3377 2.5909 3300.6752 1.2841 1.6495 1.9672 2.3377 2.5908 3310.6752 1.2841 1.6495 1.9672 2.3377 2.5908 3320.6752 1.2841 1.6495 1.9671 2.3376 2.5907 3330.6752 1.2841 1.6494 1.9671 2.3376 2.5907 3340.6752 1.2841 1.6494 1.9671 2.3376 2.5906 3350.6752 1.2841 1.6494 1.9671 2.3375 2.5906 3360.6752 1.2841 1.6494 1.9670 2.3375 2.5905 3370.6752 1.2841 1.6494 1.9670 2.3375 2.5905 3380.6752 1.2841 1.6494 1.9670 2.3374 2.5905 3390.6752 1.2841 1.6494 1.9670 2.3374 2.5904 3400.6752 1.2840 1.6493 1.9670 2.3374 2.5904 3410.6752 1.2840 1.6493 1.9669 2.3373 2.5903 3420.6752 1.2840 1.6493 1.9669 2.3373 2.5903 3430.6752 1.2840 1.6493 1.9669 2.3373 2.5902 3440.6752 1.2840 1.6493 1.9669 2.3372 2.5902 3450.6752 1.2840 1.6493 1.9669 2.3372 2.5902 3460.6752 1.2840 1.6493 1.9668 2.3372 2.5901 3470.6752 1.2840 1.6493 1.9668 2.3371 2.5901 3480.6752 1.2840 1.6492 1.9668 2.3371 2.5900 3490.6752 1.2840 1.6492 1.9668 2.3371 2.5900 3500.6752 1.2840 1.6492 1.9668 2.3370 2.5899 3510.6752 1.2840 1.6492 1.9667 2.3370 2.5899 3520.6752 1.2840 1.6492 1.9667 2.3370 2.5899 3530.6752 1.2840 1.6492 1.9667 2.3370 2.5898 3540.6752 1.2839 1.6492 1.9667 2.3369 2.5898 3550.6752 1.2839 1.6492 1.9667 2.3369 2.5897 3560.6752 1.2839 1.6491 1.9666 2.3369 2.5897 3570.6752 1.2839 1.6491 1.9666 2.3368 2.5897 3580.6752 1.2839 1.6491 1.9666 2.3368 2.5896 3590.6752 1.2839 1.6491 1.9666 2.3368 2.5896 3600.6752 1.2839 1.6491 1.9666 2.3368 2.5896 3610.6752 1.2839 1.6491 1.9666 2.3367 2.5895 3620.6752 1.2839 1.6491 1.9665 2.3367 2.5895 3630.6752 1.2839 1.6491 1.9665 2.3367 2.5894 3640.6752 1.2839 1.6491 1.9665 2.3366 2.5894 3650.6752 1.2839 1.6490 1.9665 2.3366 2.5894 3660.6752 1.2839 1.6490 1.9665 2.3366 2.5893 3670.6752 1.2839 1.6490 1.9664 2.3366 2.58933680.6752 1.2839 1.6490 1.9664 2.3365 2.5893 3690.6752 1.2839 1.6490 1.9664 2.3365 2.5892 3700.6752 1.2838 1.6490 1.9664 2.3365 2.5892 3710.6752 1.2838 1.6490 1.9664 2.3364 2.5891 3720.6751 1.2838 1.6490 1.9664 2.3364 2.5891 3730.6751 1.2838 1.6489 1.9663 2.3364 2.5891 3740.6751 1.2838 1.6489 1.9663 2.3364 2.5890 3750.6751 1.2838 1.6489 1.9663 2.3363 2.5890 3760.6751 1.2838 1.6489 1.9663 2.3363 2.5890 3770.6751 1.2838 1.6489 1.9663 2.3363 2.5889 3780.6751 1.2838 1.6489 1.9663 2.3363 2.5889 3790.6751 1.2838 1.6489 1.9662 2.3362 2.5889 3800.6751 1.2838 1.6489 1.9662 2.3362 2.5888 3810.6751 1.2838 1.6489 1.9662 2.3362 2.5888 3820.6751 1.2838 1.6489 1.9662 2.3361 2.5888 3830.6751 1.2838 1.6488 1.9662 2.3361 2.5887 3840.6751 1.2838 1.6488 1.9662 2.3361 2.5887 3850.6751 1.2838 1.6488 1.9661 2.3361 2.5887 3860.6751 1.2837 1.6488 1.9661 2.3360 2.5886 3870.6751 1.2837 1.6488 1.9661 2.3360 2.5886 3880.6751 1.2837 1.6488 1.9661 2.3360 2.5886 3890.6751 1.2837 1.6488 1.9661 2.3360 2.5885 3900.6751 1.2837 1.6488 1.9661 2.3359 2.5885 3910.6751 1.2837 1.6488 1.9660 2.3359 2.5885 3920.6751 1.2837 1.6488 1.9660 2.3359 2.5884 3930.6751 1.2837 1.6487 1.9660 2.3359 2.5884 3940.6751 1.2837 1.6487 1.9660 2.3358 2.5884 3950.6751 1.2837 1.6487 1.9660 2.3358 2.5883 3960.6751 1.2837 1.6487 1.9660 2.3358 2.5883 3970.6751 1.2837 1.6487 1.9660 2.3358 2.5883 3980.6751 1.2837 1.6487 1.9659 2.3358 2.5882 3990.6751 1.2837 1.6487 1.9659 2.3357 2.5882 4000.6751 1.2837 1.6487 1.9659 2.3357 2.5882 4010.6751 1.2837 1.6487 1.9659 2.3357 2.5881 4020.6751 1.2837 1.6487 1.9659 2.3357 2.5881 4030.6751 1.2837 1.6486 1.9659 2.3356 2.5881 4040.6751 1.2837 1.6486 1.9659 2.3356 2.5881 4050.6751 1.2836 1.6486 1.9658 2.3356 2.5880 4060.6751 1.2836 1.6486 1.9658 2.3356 2.5880 4070.6751 1.2836 1.6486 1.9658 2.3355 2.5880 4080.6751 1.2836 1.6486 1.9658 2.3355 2.5879 4090.6751 1.2836 1.6486 1.9658 2.3355 2.5879 4100.6751 1.2836 1.6486 1.9658 2.3355 2.5879 4110.6751 1.2836 1.6486 1.9658 2.3355 2.58784130.6751 1.2836 1.6486 1.9657 2.3354 2.5878 4140.6751 1.2836 1.6485 1.9657 2.3354 2.5878 4150.6751 1.2836 1.6485 1.9657 2.3354 2.5877 4160.6751 1.2836 1.6485 1.9657 2.3353 2.5877 4170.6751 1.2836 1.6485 1.9657 2.3353 2.5877 4180.6751 1.2836 1.6485 1.9657 2.3353 2.5876 4190.6751 1.2836 1.6485 1.9656 2.3353 2.5876 4200.6751 1.2836 1.6485 1.9656 2.3353 2.5876 4210.6751 1.2836 1.6485 1.9656 2.3352 2.5876 4220.6751 1.2836 1.6485 1.9656 2.3352 2.5875 4230.6751 1.2836 1.6485 1.9656 2.3352 2.5875 4240.6751 1.2836 1.6485 1.9656 2.3352 2.5875 4250.6751 1.2835 1.6484 1.9656 2.3352 2.5874 4260.6751 1.2835 1.6484 1.9655 2.3351 2.5874 4270.6751 1.2835 1.6484 1.9655 2.3351 2.5874 4280.6751 1.2835 1.6484 1.9655 2.3351 2.5874 4290.6751 1.2835 1.6484 1.9655 2.3351 2.5873 4300.6751 1.2835 1.6484 1.9655 2.3351 2.5873 4310.6751 1.2835 1.6484 1.9655 2.3350 2.5873 4320.6751 1.2835 1.6484 1.9655 2.3350 2.5873 4330.6751 1.2835 1.6484 1.9655 2.3350 2.5872 4340.6751 1.2835 1.6484 1.9654 2.3350 2.5872 4350.6751 1.2835 1.6484 1.9654 2.3350 2.5872 4360.6751 1.2835 1.6484 1.9654 2.3349 2.5872 4370.6751 1.2835 1.6483 1.9654 2.3349 2.5871 4380.6751 1.2835 1.6483 1.9654 2.3349 2.5871 4390.6750 1.2835 1.6483 1.9654 2.3349 2.5871 4400.6750 1.2835 1.6483 1.9654 2.3349 2.5870 4410.6750 1.2835 1.6483 1.9654 2.3348 2.5870 4420.6750 1.2835 1.6483 1.9653 2.3348 2.5870 4430.6750 1.2835 1.6483 1.9653 2.3348 2.5870 4440.6750 1.2835 1.6483 1.9653 2.3348 2.5869 4450.6750 1.2835 1.6483 1.9653 2.3348 2.5869 4460.6750 1.2835 1.6483 1.9653 2.3347 2.5869 4470.6750 1.2834 1.6483 1.9653 2.3347 2.5869 4480.6750 1.2834 1.6483 1.9653 2.3347 2.5868 4490.6750 1.2834 1.6483 1.9653 2.3347 2.5868 4500.6750 1.2834 1.6482 1.9652 2.3347 2.5868 4510.6750 1.2834 1.6482 1.9652 2.3346 2.5868 4520.6750 1.2834 1.6482 1.9652 2.3346 2.5867 4530.6750 1.2834 1.6482 1.9652 2.3346 2.5867 4540.6750 1.2834 1.6482 1.9652 2.3346 2.5867 4550.6750 1.2834 1.6482 1.9652 2.3346 2.58674570.6750 1.2834 1.6482 1.9652 2.3345 2.5866 4580.6750 1.2834 1.6482 1.9652 2.3345 2.5866 4590.6750 1.2834 1.6482 1.9651 2.3345 2.5866 4600.6750 1.2834 1.6482 1.9651 2.3345 2.5866 4610.6750 1.2834 1.6482 1.9651 2.3345 2.5865 4620.6750 1.2834 1.6482 1.9651 2.3344 2.5865 4630.6750 1.2834 1.6482 1.9651 2.3344 2.5865 4640.6750 1.2834 1.6481 1.9651 2.3344 2.5865 4650.6750 1.2834 1.6481 1.9651 2.3344 2.5864 4660.6750 1.2834 1.6481 1.9651 2.3344 2.5864 4670.6750 1.2834 1.6481 1.9651 2.3344 2.5864 4680.6750 1.2834 1.6481 1.9650 2.3343 2.5864 4690.6750 1.2834 1.6481 1.9650 2.3343 2.5864 4700.6750 1.2834 1.6481 1.9650 2.3343 2.5863 4710.6750 1.2834 1.6481 1.9650 2.3343 2.5863 4720.6750 1.2833 1.6481 1.9650 2.3343 2.5863 4730.6750 1.2833 1.6481 1.9650 2.3343 2.5863 4740.6750 1.2833 1.6481 1.9650 2.3342 2.5862 4750.6750 1.2833 1.6481 1.9650 2.3342 2.5862 4760.6750 1.2833 1.6481 1.9650 2.3342 2.5862 4770.6750 1.2833 1.6481 1.9649 2.3342 2.5862 4780.6750 1.2833 1.6480 1.9649 2.3342 2.5862 4790.6750 1.2833 1.6480 1.9649 2.3342 2.5861 4800.6750 1.2833 1.6480 1.9649 2.3341 2.5861 4810.6750 1.2833 1.6480 1.9649 2.3341 2.5861 4820.6750 1.2833 1.6480 1.9649 2.3341 2.5861 4830.6750 1.2833 1.6480 1.9649 2.3341 2.5860 4840.6750 1.2833 1.6480 1.9649 2.3341 2.5860 4850.6750 1.2833 1.6480 1.9649 2.3341 2.5860 4860.6750 1.2833 1.6480 1.9649 2.3340 2.5860 4870.6750 1.2833 1.6480 1.9648 2.3340 2.5860 4880.6750 1.2833 1.6480 1.9648 2.3340 2.5859 4890.6750 1.2833 1.6480 1.9648 2.3340 2.5859 4900.6750 1.2833 1.6480 1.9648 2.3340 2.5859 4910.6750 1.2833 1.6480 1.9648 2.3340 2.5859 4920.6750 1.2833 1.6480 1.9648 2.3340 2.5859 4930.6750 1.2833 1.6480 1.9648 2.3339 2.5858 4940.6750 1.2833 1.6479 1.9648 2.3339 2.5858 4950.6750 1.2833 1.6479 1.9648 2.3339 2.5858 4960.6750 1.2833 1.6479 1.9648 2.3339 2.5858 4970.6750 1.2833 1.6479 1.9647 2.3339 2.5858 4980.6750 1.2833 1.6479 1.9647 2.3339 2.5857 4990.6750 1.2833 1.6479 1.9647 2.3338 2.58575000.6750 1.2832 1.6479 1.9647 2.3338 2.5857。
浅谈如何认定水泥生产中的废渣掺加量
() √ ( + c = A)
=2 3× 1 . 0~ .
I +^ ()+ ( + ( + ( ) l 6 P) “ )
作者 地址 : 东佛 山市禅 城 区五峰 四路 2号 广
H c )
面 巫
1 2 3
=
亚 互耍 皿
14 / 6
邮 政 编 码 :2 0 0 5 80
联 系电话 :0 5 )2 19 4 (7 7 8 7 5 1
收稿 日期 :0 5—1 20 2—1 0
6 0。
20 2 06 ‘
肋
2 7
维普资讯
预定 的配料方案煅烧成为矿物组成合理 、质量高 的
1 吨水泥所加入的作为混合材 的废渣量 , 它在水泥 中
所 占的百分数是 经过对出厂水泥进行组分测定得 出
的 ; 泥 中废 渣掺 加量 ( c 表示 ) 在整 个水 泥 水 用 % 指 生 产 过程 中 ,每 生产 1吨水 泥 所使 用 的各 种废 渣 在
的掺加量 , 其工作步骤为: a )在厂内原料堆场中, 随机抽取具有代表性和 均匀性 的生料配料所需的各种原材料 ,考虑到企业 生产时对原料的预均化和搭配使用 ,为避免取样 的 风险和取样造成的误差 ,每种原材料的取样应尽量
开展资源综合利用 , 特别是对工业废渣 、 废弃物 的有效利用 ,是保护环境 、治理环境的一项重要工 作, 是有效利用资源 、 充分利用资源 、 节约资源、 发展
循 环经 济的一 个重要 途 径 。
就怎样科学认定水泥生产中的废渣掺加量进行分析 和总结, 以期与同行商讨。
2 认 定方 法 水泥生 产 流程 概括 为 :原 材料 - 生 料一 熟料 一 ÷ 成 品 ( 泥 ), 水 其生 产 流程决 定 了在 水泥 生产 过程 中
t值表
T值表
t分布的使用使用分布表的时候要有置信度和自由度两个数据,t分布给出的α是由100%减去给定的置信度后得到的。
例题:如果在90%的置信度下作出一个估计,那么就要查t分布表中,α=0.10那一栏(100%-90%=0.10)。
解答:在90%的置信度下,对容量为14的样本作出一个估计。
那么就要从α=0.10那一栏下找到自由度为13(n-1=14-1=13)那一行相交的数字为1.771。
T值表
注:上表右上角图中的部分表示概率P,P(2)是双侧的概率,P(1)是单侧的概率,n’是自由度。
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