Empirical Studies for the Assessment of the Effectiveness of Design Patterns in Migration between Software Architectures of Embedded Applications

Table 9

Calculations of the differences of mean for experiment 2.

	PP	NPP
Performance of participants in (%)	67.5	37.5
	90	27.5
	70	55
	65	17.5
	70	30
Sum	∑PP = 362.5	∑NPP = 167.5
Mean	PP′ = 72.5	NPP′ = 33.5
Difference of mean	PP′ − NPP′ = 39