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%)
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