Project Summary: The topic of this essay will address the issue of variability of performance across human operators and how that variability is measured. It should reflect the results of your independent research. In your essay, be sure to include the following: the analytics of measuring job performance, the measures in estimating the monetary value of variations in job performance, the cost-accounting approach to performance variation, and the global estimation job performance procedure. The paper is to be a minimum of three pages in length not counting cover, abstract, references,