Homework Answers
| S.No | X | Y | (x-x̅)2 | (y-y̅)2 | (x-x̅)(y-y̅) |
| 1 | 5 | 16 | 0.0400 | 2.56 | -0.3200 |
| 2 | 7 | 12 | 3.2400 | 5.76 | -4.3200 |
| 3 | 0 | 18 | 27.0400 | 12.96 | -18.7200 |
| 4 | 5 | 9 | 0.0400 | 29.16 | 1.0800 |
| 5 | 6 | 14 | 0.6400 | 0.16 | -0.3200 |
| 6 | 3 | 15 | 4.8400 | 0.36 | -1.3200 |
| 7 | 9 | 15 | 14.4400 | 0.36 | 2.2800 |
| 8 | 4 | 19 | 1.4400 | 21.16 | -5.5200 |
| 9 | 8 | 13 | 7.8400 | 1.96 | -3.9200 |
| 10 | 5 | 13 | 0.0400 | 1.96 | 0.2800 |
| Total | 52 | 144 | 59.6000 | 76.40 | -30.8000 |
| Mean | 5.200 | 14.40 | SSX | SSY | SXY |
| SST=Syy= | 76.4000 | |
| SSE =Syy-(Sxy)2/Sxx= | 60.483 | |
| SSR =(Sxy)2/Sxx = | 15.9168 | |
a)
| Coeffficient of determination R^2 =SSR/SST= | 0.208 | ||
b)
Ho: p2 <=0
Ha:p2 >0
c)
F test statistic =2.11
p value =0.185
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