Homework Answers
x=before
y=after
d= after-before=y-x
| sr.no | x | y | d=y-x | d-d̅ | (d-d̅)2 |
| 1 | 3 | 4 | 1 | -0.5 | 0.25 |
| 2 | 4 | 5 | 1 | -0.5 | 0.25 |
| 3 | 3 | 6 | 3 | 1.5 | 2.25 |
| 4 | 2 | 4 | 2 | 0.5 | 0.25 |
| 5 | 4 | 5 | 1 | -0.5 | 0.25 |
| 6 | 5 | 6 | 1 | -0.5 | 0.25 |
| Total= | 9 | 3.5 | |||
| mean=d̅ | Total/6 | ||||
| d̅= | 1.5 |
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