Which of the following is an example of a pure service?
A) air travel
B) psychotherapy
C) baby oil
D) a laptop
E) a restaurant meal
B
Business
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American Express executives hypothesize that 40% of college students own an American Express credit card. Testing this hypothesis is an example of:
A) summarizing B) generalizing C) comparing D) relating E) type I error
Business
Linear mathematical programming techniques assume that all parameters in the models are:
A) known with certainty. B) unknown. C) predictable. D) unpredictable.
Business