Computer Science 161 - Fall 2009 - Doug Tygar
Uses visual aids and blackboards effectively
Number of Respondents
40
Mean
3.5
Standard Deviation
1.2
Median
4.0
95% Confidence Interval
3.5 ± 0.4
Max
5.0
Frequency Distribution
| 1 | 2 (5.0%) |
|---|---|
| 2 | 6 (15.0%) |
| 3 | 10 (25.0%) |
| 4 | 10 (25.0%) |
| 5 | 10 (25.0%) |
| N/A | 0 (0.0%) |
| Omit | 2 (5.0%) |