| N | Mean | SD | Std. error | 95% confidence interval for mean | Min | Max | |
---|---|---|---|---|---|---|---|---|
Lower bound | Upper bound | |||||||
EI | 23 | 28.17 | 6.07 | 1.26 | 25.54 | 30.80 | 16.00 | 36.50 |
SI | 19 | 22.47 | 8.87 | 2.03 | 18.19 | 26.74 | 8.00 | 39.00 |
PI | 25 | 30.72 | 6.44 | 1.28 | 28.06 | 33.37 | 14.00 | 39.00 |
Total | 67 | 27.50 | 7.76 | .948 | 25.61 | 29.40 | 8.00 | 39.00 |