Skip to main content

Table 14 Confidence Intervals of the samples from each amalgamated group

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