Fig. 1
Fig. 2
Fig. 3
T-test: two-sample assuming equal variances
| P | ||
|---|---|---|
| ROE | H | L |
| Mean | 4.185185185 | 2.539215686 |
| Variance | 18.39902166 | 12.49843137 |
| Observations | 54 | 51 |
| Pooled Variance | 15.53465744 | |
| Hypothesized Mean Difference | 0 | |
| df | 103 | |
| t Stat | 2.138741325 | |
| P(T<=t) one-tail | 0.017410201 | |
| t Critical one-tail | 1.659782274 | |
| P(T<=t) two-tail | 0.034820403 | |
| t Critical two-tail | 1.98326409 | |
Descriptive statistics ROE
| Mean | 3.385714286 | Kurtosis | -0.26829549 |
|---|---|---|---|
| Standard Error | 0.391195286 | Skewness | 0.832625377 |
| Median | 3 | Range | 13 |
| Mode | 1 | Minimum | -1.5 |
| Standard Deviation | 4,008558838 | Maximum | 11.5 |
| Sample Variance | 16.06854396 | Sum | 355.5 |
ROE and regularly measured processes
| M | M | S | |
|---|---|---|---|
| p-value | 0.02151 | 0.01063 | 0.78615 |
| H0 | Rejected | Rejected | Fail to reject |