A computer company conducted a “new and improved” course designed to train its service representatives in learning to repair personal computers. One hundred trainees were split into two groups on a random bases: 50 took the customary course and 50 took the new course. At the end of 6 weeks, all 100 trainees were given the same final examination. Using a chi-square, test the null hypothesis that the new course was no better than the customary course in terms of teaching service representatives to repair personal computers. What do your results indicate?
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