X skupina X2 10 A 100 sk. A sk. B 3 B 9 soucet 681.5 461.5 10 A 100 pocet 65 64 3 B 9 soucet2 8584.75 5202.25 18 A 324 6 B 36 vyb. prumer 10.48 7.21 12 A 144 vyb. rozptyl 22.49 29.75 3 B 9 vyb. sm. odchylka 4.74 5.45 10 A 100 S1^2/S2^2 "F(0,025,m-1,n-1)" 0 B 0 F-test 0.76 0.61 0 A 0 int. spol. 0.46 1.24 připouštíme stejné rozptyly 12 B 144 12 A 144 dvouvyberovy t-test 12 B 144 M1-M2 S* "t(0,975)" vel. int. 11 A 121 3.27 5.11 1.98 1.78 14 B 196 t-test 3.64 8 A 64 int.spol. 1.49 5.05 4.5 B 20.25 14.5 A 210.25 Závěr: skupiny nebyly stejně obtížné 4 B 16 6 A 36 8 B 64 7.5 A 56.25 8 B 64 6 A 36 12 B 144 18 A 324 2 B 4 8 A 64 4 B 16 12 A 144 9 B 81 4 A 16 3 B 9 12 A 144 5 B 25 22.5 A 506.25 3 B 9 12 A 144 16 B 256 7 A 49 10 B 100 12 A 144 17 B 289 10 A 100 9 B 81 10 A 100 13 B 169 21 A 441 16 B 256 5.5 A 30.25 12 B 144 15 A 225 3 B 9 16 A 256 5 B 25 17 A 289 5 B 25 14 A 196 7 B 49 2 A 4 5 B 25 5 A 25 12 B 144 5 A 25 0 B 0 7 A 49 6 B 36 8 A 64 4 B 16 7 A 49 11 B 121 18.5 A 342.25 12 B 144 11 A 121 24 B 576 12 A 144 0 B 0 3 A 9 4 B 16 9 A 81 10.5 B 110.25 5 A 25 5 B 25 6 A 36 12.5 B 156.25 14.5 A 210.25 3 B 9 17 A 289 13 B 169 11 A 121 0 B 0 9 A 81 0 B 0 15 A 225 21 B 441 10 A 100 14 B 196 15 A 225 7 B 49 14 A 196 3 B 9 10 A 100 7 B 49 11.5 A 132.25 2 B 4 8 A 64 5 B 25 14 A 196 0 B 0 9 A 81 11 B 121 14 A 196 5 B 25 9 A 81 4 B 16 11 A 121 0 B 0 11 A 121 1.5 B 2.25 13 A 169 9.5 B 90.25 8 A 64 14 B 196 15 A 225 5 B 25 1 A 1 2 B 4 2 A 4 ##### Sheet/List 2 ##### 7.5 7.8 6.9 8.2 8 7.5 9 7.6 8.1 7.9 8.3 86.8 11 56.25 60.84 47.61 67.24 64 56.25 81 57.76 65.61 62.41 68.89 687.86 spotreba auta vyb. Prumer 7.890909091 vyb. rozptyl 0.2929 0.292909091 vyb. sm. Odchylka 0.541210764 T-kvantil 1.812461102 testovana 7.7 statistika 1.169920973 interval pro mu 7.59514954 "Hypotezu, ze spotreba je 7,7 nezamitame" vyb. Rozptyly Tab. 3 autobus 0 2 4 -3 2 -4 -3 0 0 5 9.12 tramvaj 4 6 3 0 -2 2 0 1 1 0 5.39 1.692783505 F kvantil 3.178893105 Ftest 0.222512262 2-tailed! rakovina 25.79354886