| Pre-test | Post-test |
---|---|---|
Mean | 10.48387 | 13.90323 |
Variance | 16.1914 | 29.49032 |
Observations | 31 | 31 |
Pearson correlation | 0.612393 | Â |
Hypothesized mean difference | 0 | Â |
df | 30 | Â |
t Stat | − 4.37708 |  |
P(T ≤ t) one-tail | 6.71E−05 |  |
t Critical one-tail | 1.697261 | Â |
P(T ≤ t) two-tail | 0.000134 |  |
t Critical two-tail | 2.042272 | Â |