Computer Science 160 - Fall 1999 - James A. Landay

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Number of Respondents
30
Mean
3.2
Standard Deviation
1.2
Median
3.0
95% Confidence Interval
3.2 ± 0.4
Max
5.0
Frequency Distribution
1 1 (3.3%)
2 7 (23.3%)
3 5 (16.7%)
4 7 (23.3%)
5 3 (10.0%)
N/A 2 (6.7%)
Omit 5 (16.7%)
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