Annual comparison of the number of employees between the treatment and control groups
| Treatment group | Control group | t-value | No. of treatment group | No. of control group | |
|---|---|---|---|---|---|
| 1st year | 1.37 | 0.76 | 2.6132*** | 21 | 111 |
| 2nd year | 1.40 | 0.70 | 2.5292** | 16 | 98 |
| 3rd year | 1.52 | 0.55 | 3.5901*** | 18 | 87 |
| 4th year | 1.56 | 0.51 | 3.1086*** | 11 | 76 |
| 5th year | 1.13 | 0.55 | 1.5500 | 10 | 62 |
| Treatment group | Control group | No. of treatment group | No. of control group | ||
|---|---|---|---|---|---|
| 1st year | 1.37 | 0.76 | 2.6132*** | 21 | 111 |
| 2nd year | 1.40 | 0.70 | 2.5292** | 16 | 98 |
| 3rd year | 1.52 | 0.55 | 3.5901*** | 18 | 87 |
| 4th year | 1.56 | 0.51 | 3.1086*** | 11 | 76 |
| 5th year | 1.13 | 0.55 | 1.5500 | 10 | 62 |
Note(s): *** 1% significance level; ** 5% significance level; * 10% significance level
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