The sampling distribution of the difference between means _____
a. is positively skewed and unimodal
b. approaches a normal distribution as sample size increases
c. is bimodal with the standard error dependent upon sample size
d. is negatively skewed and unimodal
B
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Which of the following students provides the best summary of the relationship between expertise and top-down/bottom-up processing?
a. Carrie: "Expert problem solvers tend to emphasize top-down processing because this framework provides the best overview of the problem." b. MarÃa Elena: "Expert problem solvers use their knowledge (top-down processing), but they also attend to the unique features of the problem (bottom-up processing)." c. Raoul: "The basic problem is that experts consistently overuse bottom-up processing, and they ignore top-down processing." d. Herbie: "Experts make too much use of bottom-up processing; novices make too much use of top-down processing."
, a business-owner, sought the help of a friend to find out which employees were likely to be loyal and honest if hired. The friend examined the bumps on the heads of all applicants and gave Sam a list of the employees he should hire. Sam's friend is a
a. sociologist b. alchemist c. psychiatrist d. phrenologist