Before Training Sample Class X Class Y 1 60 62 65 3467 A 2 5 8 9 10 11 12 68 59 62 65 66 55 45 56 60 59 60 66 56 68 60 1 (14.13 KiB) Viewed 56 times
Before Training Sample Class X Class Y 1 60 62 65 3467 A 2 5 8 9 10 11 12 68 59 62 65 66 55 45 56 60 59 60 66 56 68 60 2 (127.35 KiB) Viewed 56 times
Before training Sample Class-X Class-Y 1 60 62 65 ~3467∞a 2 5 8 9 10 11 12 68 59 62 65 66 55 45 56 60 59 60 66 56 68 60 66 58 48 58 72 58 After training Class-X Class-Y 66 60 62 60 68 65 59 58 70 68 74 66 70 68 68 60 68 50 68 58 75 73 68 58
a) What is the knowledge (test scores) of participants from class X and class Y before training less than 65? Use the significance level a = 0.05, and assume that the variance both classes are the same. b) Is there a difference in the average grades of class X and class Y, before or after training? Use a significance level of a = 0.05. c) Is there an increase in knowledge (score) after participants take part in the training, good for class X or class Y? Use a significance level of a=0.05.
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