Towards a Low-Cost Teacher Orchestration Using Ubiquitous Computing Devices for Detecting Student’s Engagement

Table 5

Paired sample -test of the proposed solution with existing teacher orchestration solutions.

Paired sample test
		Paired differences						df	Sig. (2-tailed)
		Mean	Std. deviation	Std. error mean	95% confidence interval of the difference
					Lower	Upper
Pair 1	You are satisfied with existing T.O. solutions–you are satisfied with smartphone-based T.O. solution	-33.80000	14.56709	6.51460	-51.88743	-15.71257	-5.188	4	0.007