I need an explanation on the abstract section, I did highlight the area to be ex

I need an explanation on the abstract section, I did highlight the area to be explained. I want to know from where the numerical results came from if they are not presented in the research paper then how it was calculated ?. Moreover, i want a simple explanation on how the mean was interpreted in table 2 and 5 (for example as stated in the explanation of table 5 in page 42, on what bases the statistical analyst says that the mean of 2.74,2.61,2.49 and 2.57 show that its employee disagree that the company’s BAS encounters irregular power supply), etc.