When the head of the research department instructs field interviewers to interview participants at a trade show such that they each interview 10 vendors that are manufacturers and 10 that are service providers, this represents what type of sampling procedure?
a. systematic sample
b. quota sample
c. area sample
d. multistage sample
Question 2
Which of the following was an amendment to the Clayton Act and prohibited price discrimination when the effect may be substantially to lessen competition or create a monopoly?
a. Wheeler-Lea Act c. Robinson-Patman Act
b. Lanham Act d. Thomson Act