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

Table 5

Calculations of the difference in means of PG and NPG groups.

	PG	NPG
Performance of groups in (%)	80	72
	95	62
Sum	∑PG = 175	∑NPG = 134
Mean	PG′ = 87.5	NPG′ = 67
Difference of mean	PG′ − NPG′ = 20.5