The centers for disease control reported the percentage of people 18 years of age and older who smoke (cdc website, december 14, 2014). suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of .29.

Dr. dow jones wants to know whether a problem-based approach to teaching economics will result in higher academic performance than his traditional method. of the six sections of economics 101 at his university, dr. jones randomly assigns three sections to the traditional method and three sections to the problem-based method for unit 1 of the course. then all sections switch the instructional method for unit 2. he plans to compare the performance of the two groups of sections on their unit 1 and unit 2 exams. this study employs a design.

By 2020, automobile market analysts expect that the demand for electric autos will increase as buyers become more familiar with the technology. however, the costs of producing electric autos may increase because of higher costs for inputs (e.g., rare earth elements), or they may decrease as the manufacturers learn better assembly methods (i.e., learning by doing). what is the expected impact of these changes on the equilibrium price and quantity for electric autos?

Coca-cola was primarily known for its core competencies in marketing, bottling, and distributing aerated drinks. however, with the success of gatorade, coca-cola developed competencies in the development and marketing of its own sports drink, powerade. which of the following is true of coca-cola? a. it is leveraging existing core competencies to improve current market position. b. it is building new core competencies to protect and extend its current market position. c. it is redeploying and recombining existing core competencies to compete in markets of the future. d. it is targeting the chasm between the early adopter and early majority market segment.