The Economics of Community Open Source Software Projects: An Empirical Analysis of Maintenance Effort

Table 3

Summary statistics from the survey on maintenance effort.

Team Member	𝑛	𝑛	Average	St. Dev.	Conf. Int.	𝛼	𝛽
Class	total	active	(hr/week)		(𝛼/2=0.025)
Administrator	156	111	6.21	±7.40	±0.21	0.1553	0.7115
Developer	497	313	6.63	±9.65	±0.13	0.1658	0.6298
Global	653	424	6.41	±8.45	±0.11	0.1603	0.6493