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学生t分布表

来源:教育资源网 • 发布时间:2020-12-02 08:03:06 • 点击:126

下表汇总了学生t分布的数据。每当使用t分布时，都可以参考这样的表来执行计算。该分布类似于标准正态分布或钟形曲线，但是该表的排列方式与钟形曲线的表不同。下表提供了一个尾部特定区域（沿表顶部列出）和自由度（沿表侧列出）的临界t值。自由度范围从1到30，底行为"大"指数千个自由度。

使用表格的例子

一个简短的例子将说明下表的使用。假设我们有一个大小为11的简单随机样本。这意味着我们将查阅具有11-1=10个自由度的行。沿着表的顶部，我们有各种显着性水平。假设我们的显着性水平为1%。这相当于0.01。这具有10个自由度的行中的列给我们一个临界值2.76377。

这意味着，为了拒绝零假设，我们需要一个超过此值2.76377的t统计量。否则，我们将无法拒绝零假设。

t分布的临界值表

142 1.637744 1430.726687 185340 1.356217 341
t0.400.250.100关于头皮健康专业知识.050.0250.010.0050.0005
10.3249201.0000003.0776846.31375212.7062031.8205263.65674636.6192
20.2886750.8164971.8856182.9199864.302656.964569.9248431.5991
30.2766710.7648922.3533633.182454.540705.8409112.9240
40.2707220.7406971.5332062.1318472.776453.746954.604098.6103
50.2671811.4758842.0150482.570583.364934.032146.8688
60.2648350.7175581.4397561.9431802.446913.142673.707435.9588
70.2631670.7111421.4149241.8945792.364622.997953.499485.4079
80.2619210.7063871.3968151.8595482.306002.****63.355395.0413
90.2609550.7027221.3830291.8331132.262162.821443.249844.7809
100.2601850.6998121.3721841.8124612.228142.763773.169274.5869
110.2595560.6974451.3634301.7958852.200992.718083.105814.4370
120.2590330.6954831.7822882.178812.681003.054544.3178
130.2585910.6938291.3501711.7709332.160372.650313.012284.2208
140.2582130.6924171.3450301.7613102.144792.624492.976844.1405
150.2578850.6911971.3406061.7530502.131452.602482.946714.0728
160.2575990.6901321.3367571.7458842.119912.583492.920784.0150
170.2573470.6891951.3333791.7396072.109822.566932.898233.9651
180.2571230.6883641.3303911.7340642.100922.552382.878443.9216
190.2569230.6876211.3277281.7291332.093022.539482.860933.8834
200.2567430.6869541.3253411.7247182.085962.527982.845343.8495
210.2565800.6863521.3231881.7207432.079612.517652.831363.8193
220.2564320.6858051.3212371.7171442.073872.508322.818763.7921
230.2562970.6853061.3194601.7138722.068662.499872.807343.7676
240.2561730.6848501.3178361.7108822.063902.492162.796943.7454
250.2560600.6844301.3163451.7081412.059542.485112.787443.7251
260.2559550.6840431.3149721.7056182.055532.478632.778713.7066
270.2558580.6836851.3137031.7032882.051832.472662.770683.6896
280.2557680.6833531.3125271.7011312.048412.467142.763263.6739
290.2556840.6830441.3114341.6991272.045232.462022.756393.6594
300.2556050.6827561.3104151.6972612.042272.457262.750003.6460
Large0.2533470.6744901.2815521.6448541.959962.326352.575833.2905

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