# Usingthe following data about the effectiveness of a trainin

Usingthe following data about the effectiveness of a training course, at the5% significance level what are the: 1) t-statistic, 2) t-critical, and3) conclusion?Data :Student   Pre-Test   Post-Test1              78            822              65            763              82            814              73            745              89            926              77            807              61            728              72            759              80            85A 1) 3.255, 2) 1.833, 3) We can say with 95% confidence that the posttest scores were higher than the pretest scoresB 1) 3.255, 2) 2.262, 3) We can say with 95% confidence that the posttest scores were higher than the pretest scoresC 1) 3.255, 2) 1.860, 3) We can say with 95% confidence that the posttest scores were higher than the pretest scoresD 1)9.766, 2) 2.262, 3) At the 95% confidence level, there is nostatistical significance between the pretest and the posttest scores