Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams — December 2018 — 17-Ind-A6 Systems Simulation. Three-hour, closed-book exam; one of two permitted calculators (Sharp or Casio), one 8.5″×11.0″ aid sheet (both sides). Format: three sections — Part A (Input Modelling): do 2 of 3 questions, 30 marks total; Part B (Modelling Concepts): do 1 of 2, 20 marks; Part C (Output Analysis): do 1 of 2, 20 marks — plus a 1-mark trivia bonus. All seven graded questions and the bonus are solved below for completeness. The exam's own front matter has two internal quirks, transcribed as printed: NOTES item "4." appears twice on page 1, and every page footer reads "17-Ind-A6/Dec. 2019" against a "December 2018" masthead.
Reference texts: Banks, Carson, Nelson & Nicol, Discrete-Event System Simulation (5th ed., Pearson) — input data analysis (ch. 9), random-variate generation, output analysis for a single system and comparing alternative systems (ch. 11–12), verification and validation (ch. 10).
