Essay – 4 pages APA format (a minimum of 1,000 words, double-spacing, Times New Romans – 12 point font with one inch margins). See attachment for formatting requirements. Please write on the below two topics Queuing (waiting) Theory Models – What it is, examples and opinions with research to substantiate. Simulation Modeling – What it is, examples and opinions with research to substantiate, as well as advantages and disadvantages. Please provide a minimum of 5 scholarly references in APA format and cite all references. Needed by, Wednesday, Dec 6th 2017.