RESEARCH METHODOLOGY

Detailed explanation-1: -Simple random sampling Simple random sampling is the randomized selection of a small segment of individuals or members from a whole population. It provides each individual or member of a population with an equal and fair probability of being chosen.

Detailed explanation-2: -Probability sampling refers to the selection of a sample from a population, when this selection is based on the principle of randomization, that is, random selection or chance. Probability sampling is more complex, more time-consuming and usually more costly than non-probability sampling.

Detailed explanation-3: -The runs test is a statistical test to determine whether random selection has been made in the process of sample selection from an ordered population. The runs test is a type of non-parametric test and hence, there is no need for the assumption of a normal distribution to hold true.

Detailed explanation-4: -Systematic sampling is a type of probability sampling method in which sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval.