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Z tab value at 5% level of significance: 1.97
| CVA | CHA | SSP | |
|---|---|---|---|
| Comparison between without school bag and with school bag in standing Z calculated value | 3.87 | 3.88 | 8.81 |
| Comparison between standing and after dynamic activity with school bag Z calculated value | 2.21 | 5.02 | 10.70 |
Z tabulated value at 5% level of significance: 1.97
