【实例 3】两组样本均数的 t-检验

]RUN

IFYOUWANTTOGETMEAN ， STANDARDDEVIATIONANDSTANDARDERROR ，

PLEASEINPUT1.

IFYOUWANTTOGETTHET-TESTFORMEANBETWEENPOPULATIONANDSAMPLE ， PLEASEINPUT2.

IFYOUWANTTOGETTHET-TESTFORMEANOFPAIREDDATA ， PLEASEINPUT3.IFYOUWANTTOGETTHET-TESTFORMEANOFGROUPEDDATA ， PLEASEINPUT4.INPUTNUMBER4

ENTERNUMBEROFOBS ERVATIONS FORGROUP＃1？11

ENTERNUMBEROFOBSERVATIONS FORGROUP＃2？14

GROUP＃1 ENTEROBSERVATION＃1?5．15 ENTEROBSERVATION＃2?8.79 ENTEROBSERVATION＃3?3.14 ENTEROBSERVATION＃4?6.64 ENTEROBSERVATION＃5?3.72 ENTEROBSERVATION＃6?6.64 ENTEROBSERVATION＃7?4.01 ENTEROBSERVATION＃8?5.60 ENTEROBSERVATION＃9?4.57 ENTEROBSERVATION＃10?7.71 ENTEROBSERVATION＃11?4.99

GROUP＃2 ENTEROBSERVATION＃1?2.90 ENTEROBSERVATION＃2?5.41 ENTEROBSERVATION＃3?5.48 ENTEROBSERVATION＃4?4.60 ENTEROBSERVATION＃5?4.03 ENTEROBSERVATION＃6?5.10 ENTEROBSERVATION＃7?5.92 ENTEROBSERVATION＃8?4.97 ENTEROBSERVATION＃9?4.24 ENTEROBSERVATION＃10?4.36 ENTEROBSERVATION＃11?2.72 ENTEROBSERVATION＃12?2.37 ENTEROBSERVATION＃13?2.09 ENTEROBSERVATION＃14?7.10

GROUP＃1MEAN=5.54181818 GROUP＃1STANDARDDEVIATION=1.74653267

GROUP＃1STANDARDERROR=526599415 GROUP＃2MEAN=4.37785715 GROUP＃2STANDARDDEVIATION=1.44989219 GROUP＃2STANDARDERROR=3.87499988 T=1.82183005

（解景田、袁国骏）