The hypothesis is used to guide the next step in the scientific method, __________
a. collection of data.
b. analysis of data.
c. drawing conclusions.
d. reporting of findings.
A
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In the game, do the players (Sony and Toshiba) move simultaneously or sequentially?
In 2006, there were a number of media reports about the next generation of DVD players, which produce much clearer picture and sound than that produced by current machines. However, there are two competing formats, Blu-ray (Sony) and HD DVD (Toshiba). Both are affiliated with certain movie studios, which have agreed to release their movies in one or the other of the new formats. This creates a problem for the producers of this new technology—they all want their own version to win out, but by competing they make it entirely likely that most consumers will sit back and wait until (a) one of the formats is a clear winner or (b) a newer, even better, method of supplying movies is developed by someone else. If the latter happens, both Sony and Toshiba lose out.
Imagine that both companies have developed a new product, but with different formats. If one of the companies would be willing to switch quickly (assume that copyright laws would allow it to produce something similar), that company would lose some time and market share but be able to get into the market. Consumers would be more willing to buy the new technology, and both companies would make more money. If neither company is willing to coordinate with the other, they end up in a war of attrition, with fewer customers. This is shown in the game below.
A. Simultaneously
B. Sequentially
This modern country's leader named Kim Jong Un is regarded by some as a ruthless leader because reports indicate that he keeps approximately 200,000 political prisoners in gulags where they are forced to work 12–15 hours per day and because many of these prisoners ultimately die of malnutrition
a. China b. North Korea c. Japan d. Vietnam e. South Korea
The concept of privatization
a. is an alternative method for providing public services through private firms. b. often elicits strong opposition from public-employee unions, who fear that their members will lose their jobs. c. is an alternative method for providing public services that can often lower the cost of government operations. d. All of these choices.
Why must error variance be minimized in an experiment?
a. it leads to confounding b. it obscures the effects of the independent variable c. it leads to differential attrition d. it increases experimenter expectancy effects e. all of the above