As of Feb 2018, the average pay for a Welding Inspector (Certified) is $26.53 /hr or $61,817 annually.
Two Types of Population in Research Target Population. Target population refers to the ENTIRE group of individuals or objects to which researchers are interested in generalizing the conclusions. The target population usually has varying characteristics and it is also known as the theoretical population. Accessible Population
Our goal is to estimate the value of an unknown population parameter, such as a pop-. ulation mean or a proportion from a binomial population. We want to use the sample. information to estimate the population parameter of interest (called the target parameter) and to assess the reliability of the estimate.