6. which of the problems in the construction of the cpi might be illustrated by each of the following situations? explain. a. the invention of cell phones b. the introduction of air bags in cars c. increased personal computer purchases in response to a decline in their price d. more scoops of raisins in each package of raisin mankiw, n. gregory. principles of macroeconomics (mindtap course list) (p. 222). cengage learning. kindle edition.