Statistical tables

F distribution table

An F-table gives the critical value of F for a pair of numerator and denominator degrees of freedom at the 5% level — the cutoff an ANOVA F statistic is compared against.

How do I read this table?

Columns are numerator df (between-group, or the number of parameters being tested) and rows are denominator df (within-group, or residual). The cell where they meet is the value F must exceed to be significant at α = 0.05.

Because an F-table is indexed by two degrees of freedom, a printed version needs a whole page per α and still covers only a handful of combinations. Any other α, or any df not listed here, is available from the calculator.

Every value here is computed from the same functions the app's tests use, so the table cannot disagree with the , which will also handle any value this table does not list.

df₂ \ df₁12345678910121520243060120
1161.448199.500215.707224.583230.162233.986236.768238.883240.543241.882243.906245.950248.013249.052250.095252.196253.253
218.51319.00019.16419.24719.29619.33019.35319.37119.38519.39619.41319.42919.44619.45419.46219.47919.487
310.1289.5529.2779.1179.0138.9418.8878.8458.8128.7868.7458.7038.6608.6398.6178.5728.549
47.7096.9446.5916.3886.2566.1636.0946.0415.9995.9645.9125.8585.8035.7745.7465.6885.658
56.6085.7865.4095.1925.0504.9504.8764.8184.7724.7354.6784.6194.5584.5274.4964.4314.398
65.9875.1434.7574.5344.3874.2844.2074.1474.0994.0604.0003.9383.8743.8413.8083.7403.705
75.5914.7374.3474.1203.9723.8663.7873.7263.6773.6373.5753.5113.4453.4103.3763.3043.267
85.3184.4594.0663.8383.6873.5813.5003.4383.3883.3473.2843.2183.1503.1153.0793.0052.967
95.1174.2563.8633.6333.4823.3743.2933.2303.1793.1373.0733.0062.9362.9002.8642.7872.748
104.9654.1033.7083.4783.3263.2173.1353.0723.0202.9782.9132.8452.7742.7372.7002.6212.580
114.8443.9823.5873.3573.2043.0953.0122.9482.8962.8542.7882.7192.6462.6092.5702.4902.448
124.7473.8853.4903.2593.1062.9962.9132.8492.7962.7532.6872.6172.5442.5052.4662.3842.341
134.6673.8063.4113.1793.0252.9152.8322.7672.7142.6712.6042.5332.4592.4202.3802.2972.252
144.6003.7393.3443.1122.9582.8482.7642.6992.6462.6022.5342.4632.3882.3492.3082.2232.178
154.5433.6823.2873.0562.9012.7902.7072.6412.5882.5442.4752.4032.3282.2882.2472.1602.114
164.4943.6343.2393.0072.8522.7412.6572.5912.5382.4942.4252.3522.2762.2352.1942.1062.059
174.4513.5923.1972.9652.8102.6992.6142.5482.4942.4502.3812.3082.2302.1902.1482.0582.011
184.4143.5553.1602.9282.7732.6612.5772.5102.4562.4122.3422.2692.1912.1502.1072.0171.968
194.3813.5223.1272.8952.7402.6282.5442.4772.4232.3782.3082.2342.1552.1142.0711.9801.930
204.3513.4933.0982.8662.7112.5992.5142.4472.3932.3482.2782.2032.1242.0822.0391.9461.896
214.3253.4673.0722.8402.6852.5732.4882.4202.3662.3212.2502.1762.0962.0542.0101.9161.866
224.3013.4433.0492.8172.6612.5492.4642.3972.3422.2972.2262.1512.0712.0281.9841.8891.838
234.2793.4223.0282.7962.6402.5282.4422.3752.3202.2752.2042.1282.0482.0051.9611.8651.813
244.2603.4033.0092.7762.6212.5082.4232.3552.3002.2552.1832.1082.0271.9841.9391.8421.790
254.2423.3852.9912.7592.6032.4902.4052.3372.2822.2362.1652.0892.0071.9641.9191.8221.768
264.2253.3692.9752.7432.5872.4742.3882.3212.2652.2202.1482.0721.9901.9461.9011.8031.749
274.2103.3542.9602.7282.5722.4592.3732.3052.2502.2042.1322.0561.9741.9301.8841.7851.731
284.1963.3402.9472.7142.5582.4452.3592.2912.2362.1902.1182.0411.9591.9151.8691.7691.714
294.1833.3282.9342.7012.5452.4322.3462.2782.2232.1772.1042.0271.9451.9011.8541.7541.698
304.1713.3162.9222.6902.5342.4212.3342.2662.2112.1652.0922.0151.9321.8871.8411.7401.683
404.0853.2322.8392.6062.4492.3362.2492.1802.1242.0772.0031.9241.8391.7931.7441.6371.577
604.0013.1502.7582.5252.3682.2542.1672.0972.0401.9931.9171.8361.7481.7001.6491.5341.467
1203.9203.0722.6802.4472.2902.1752.0872.0161.9591.9101.8341.7501.6591.6081.5541.4291.352
∞3.8412.9962.6052.3722.2142.0992.0101.9381.8801.8311.7521.6661.5711.5171.4591.3181.221

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