Which of the following refers to the improper assignment of test units to treatment conditions?
A) randomization
B) matching
C) overcontrolling
D) statistical regression
E) selection bias
E
Business
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Which of the following sampling methods, if properly invoked, will produce projectable results?
a. quota b. convenience c. systematic d. snowball e. stratified quota
Business
Advertising directed toward a mass market is usually a good way to position a complex product
Indicate whether the statement is true or false
Business