Explain in detail,‘Quantitative’ data analysis? My posted question is related with Research Methodology

Quantitative data analysis or research is an empirical
investigation that is very systematic and structured in nature. This kind of research
also uses a lot of mathematical investigation hence the term quantitative. There are a
lot of numbers involved when gathering quantitative data. The objective of this kind of
research is to gather and develop theories and form a hypothesis as to the predicted
outcome. These hypotheses are also not always proven but this is the point of
research.

Data is gathered in numerous ways such as
surveys, questionnaires, and interviews. Sample sizes are also usually large in this
kind of research.