The HR manager wishes to see if there has been any change in the ability of trainees after a specific training programme. The trainee take an aptitude test before the start of the programme and an equivalent one after thy have completed it. The scores recorded are given below. Has any change taken place at 5% level of significance?
Added by Marvin T.
Step 1
First, we need to identify the type of test we need to use. In this case, we are comparing the scores of the same group of trainees before and after a training programme. Therefore, we need to use a paired t-test. Show more…
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