α n0.250.100.050.0250.0111.00003.07776.313812.706231.820520.81651.88562.92004.30276.964630.76491.63772.35343.18244.540740.74071.53322.13182.77643.746950.72671.47592.01502.57063.364960.71761.43981.94322.44693.142770.71111.41491.89462.36462.998080.70641.39681.85952.30602.896590.70271.38301.83312.26222.8214100.69981.37221.81252.22812.7638110.69741.36341.79592.20102.7181120.69551.35621.78232.17882.6810130.69381.35021.77092.16042.6503140.69241.34501.76132.14482.6245150.69121.34061.75312.13142.6025160.69011.33681.74592.11992.5835170.68921.33341.73962.10982.5669180.68841.33041.73412.10092.5524190.68761.32771.72912.09302.5395200.68701.32531.72472.08602.5280210.68641.32321.72072.07962.5176220.68581.32121.71712.07392.5083230.68531.31951.71392.06872.4999240.68481.31781.71092.06392.4922250.68441.31631.70812.05952.4851260.68401.31501.70562.05552.4786270.68371.31371.70332.05182.4727280.68341.31251.70112.04842.4671290.68301.31141.69912.04522.4620300.68281.31041.69732.04232.4573310.68251.30951.69552.03952.4528320.68221.30861.69392.03692.4487330.68201.30771.69242.03452.4448340.68181.30701.69092.03222.4411350.68161.30621.68962.03012.4377360.68141.30551.68832.02812.4345370.68121.30491.68712.02622.4314380.68101.30421.68602.02442.4286390.68081.30361.68492.02272.4258400.68071.30311.68392.02112.4233410.68051.30251.68292.01952.4208420.68041.30201.68202.01812.4185430.68021.30161.68112.01672.4163 t 分布表 440.68011.30111.68022.01542.4141450.68001.30061.67942.01412.4121460.67991.30021.67872.01292.4102470.67971.29981.67792.01172.4083480.67961.29941.67722.01062.4066490.67951.29911.67662.00962.4049500.67941.29871.67592.00862.4033510.67931.29841.67532.00762.4017520.67921.29801.67472.00662.4002530.67911.29771.67412.00572.3988540.67911.29741.67362.00492.3974550.67901.29711.67302.00402.3961560.67891.29691.67252.00322.3948570.67881.29661.67202.00252.3936580.67871.29631.67162.00172.3924590.67871.29611.67112.00102.3912600.67861.29581.67062.00032.3901610.67851.29561.67021.99962.3890620.67851.295...