The number of dummy variables must equal 1 less than the number of categories of the qualitative variable

Which of the following scenarios illustrates the use of processed materials in manufacturing?

a. No-Glut Inc. uses rice flour in the manufacture of gluten-free products. b. Zintec Sugar House uses sugarcane to produce white sugar. c. Pace, an automobile company, uses magnesium alloy wheels for its high-end cars. d. Reldex Steel Corp. uses blast furnaces in their manufacturing process.

Tricore's chief executive officer says that if opening its own business operations in Zimbabwe is too difficult because of bureaucracies, it might do better by contracting a local business to do its manufacturing

Which of the following, if true, weakens the case for doing so? A) Bureaucracies often favor local businesses over international ones. B) Bureaucracies are often the largest employers in the regions in which they operate. C) Bureaucracies tend to present both incentives and opportunities for corruption. D) Bureaucracies tend to pay their workers more highly than other businesses do. E) Bureaucracies largely employ unskilled workers who perform routine work.