Table 2. 10% Critical Values of the F Distribution Numerator De - rees of Freedom "annals-nun D e n o m i n a t o r 25 26 27 28 29 30 40 60 90 1 20 a0 MQOHQQU 00.010111 3 -m-----IE!I Example: The 10% critical value for numerator df=2 and denominator df=40 is 2.44. Table 63b. 5% Critical Values of the F Distribution Numerator De rees of Freedom nunnn-num D e n o m i n a t o r we tnCDm-IGOCDO oaoo-u'n Example. The 5% critical value for numerator df=4 and denominator df=120 IS 2.45. Table 2. 1% Critical Values of the F Distribution Numerator Degrees of Freedom nnnnnn-nnn D e n o m i n a t o r 001000 Example: The 1% critical value for numerator df=3 and denom'nator df=60 is 4.13. Table 1. Critical Values of the t Distribution Si nificance Level 2-Tailed: 0.10 0.05 0.02 0.01 6 7 8 9 10 16 17 18 19 N O Example: The 1% critical value for a one tailed test with 25 df is 2.485. The 5% critical value for a two-tailed test with large (>120) df is 1.960. . des testscr str avginc el_pct comp_stu variable name testscr math_scr)/2 str avginc el_pct comp_stu Av. test score: variable label Studentteacher ratio District average income in $1000s Percentage of English learners storage display value type format label float %9.0g float %9.0g float %9.0g float %9.0g float %9.0g Computers per student . sum testscr str avginc el_pct comp_stu Variable avginc el_pct comp_stu 654.4298 19.59716 15.67573 15.66891 .1377724 19.55766 1.940524 7.700279 18.56117 .0654321 . regress testscr str avginc el_pct comp_stu Model 88071.7342 33946.4215 Min Max 605.55 706.75 14 25.8 5.335 55.328 0 85.53972 0 .4208333 Number of obs = F( . ) Prob > F Rsquared Adj Rsquared Root MSE (read_scr + 320 str avginc el_pct comp_stu _cons .11143 1.438658 .4878838 15.4198 635.2143 .3235844 .0818068 .033659 9.619062 7.161601 [95% Conf. .5252298 1.277701 -.5541086 3.505929 621.1237 Interval] .7480899 1.599615 .421659 34.34553 649.3049