Reasons to study operations management include Studying why people organize themselves for free enterprise Studying how goods and services are consumed \& what motivates consumers Understanding what human resource managers do Learning to optimize a costly part of the enterprise All of the above The best method for eliminating random variation from a process is Use root cause analysis and then eliminate the cause Measure the quality of all incoming materials Invest in training of your employees so they all do their jobs the same way Random variation can not be eliminated from a process The three core functions existing in all businesses include (check all 3 ) Human Resources Finance Operations Information Services Marketing Inventory Management Johnny's is an Italian restaurant. Yesterday, they made 120 pizzas in a shift. The process employs 2 people at $10 /hour, and uses 20 ounces of cheese on each pizza. Cheese costs $0.05/oz. Calculate a) the labor productivity and b) the multifactor productivity a) 6 pizzas/hr b) 0.375pizza/$ a) 12 pizzas/hr b) $0.597/hr a) 12 pizzas/hr b) 0.597 pizzas /$ a) 6 pizzas /hr b) 0.597 pizzas /$