From: Investigating probabilistic sampling approaches for large-scale surveys in software engineering
Skill group | Population size | Sample size | CI for CL=95 % |
---|---|---|---|
Agilists | 120,315 | 97 | 9.95 |
Testing Professionals | 68,033 | 82 | 10.82 |
Programmers | 9,655 | 57 | 12.94 |
Configuration Managers | 17,234 | 23 | 20.42 |
System Analysts | 7,335 | 31 | 17.57 |