A student eats a candy bar just prior to taking a test and receives a high grade. He does not buy one for the next test and receives a low score. On his third test, he again eats a candy bar and gets a high score. This student concludes that eating candy bars leads to higher test scores. His hypothesis
A. should be termed a “theory.”
B. assumes that correlation implies causation.
C. assumes that causation implies correlation.
D. reflects the amount of studying he had done for the exams.
Answer: B
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The table above gives costs at Jan's Bike Sho
A) $200 B) $300 C) $400 D) $500 E) None of the above answers is correct.
Suppose labor productivity differences are the only determinants of comparative advantage, and Brazil and Chile both produce only coffee and sugar. In Chile, either 5 units of coffee or 2 units of sugar can be produced in one day. In Brazil, a day of labor produces either 2 units of coffee or 1 unit of sugar. Which of the following statements is true?
a. Brazil has a comparative advantage in producing coffee. b. Brazil has a comparative advantage in producing both coffee and sugar. c. Chile has a comparative advantage in producing both coffee and sugar. d. Neither Chile nor Brazil has a comparative advantage in producing coffee. e. Brazil has a comparative advantage in producing sugar.
___________ is the speed and ease of retrieving cash or turning another type of investment into cash
a. Morbidity b. Liquidity c. Asset building d. Lifetime earning credit
Public goods are nonrival in consumption and nonexclusive, so private firms cannot sell them profitably
Indicate whether the statement is true or false