A statistics instructor asks the students to rate how well they like math. The instructor will use statistics to
a. organize, transform, perform mathematical operations, and otherwise manipulate the students' ratings.
b. design a research study looking at students' liking of math.
c. round the ratings to two decimal places so that they are more easily communicated.
d. organize, summarize, communicate, and draw conclusions about the students' ratings.
D
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According to research, which of the following chemicals increases during sleep and may lead to changes in dreaming throughout the night?
A. Cortisol B. Insulin C. Adrenaline D. Gamma-aminobutyric acid (GABA)
The ____________________ membrane is another term for the eardrum
Fill in the blank(s) with correct word
According to the Zeigarnik effect, when subjects are allowed to complete some tasks but not others, ____.
a. the completed tasks are remembered better than the uncompleted tasks b. the uncompleted tasks are remembered better than the completed tasks c. neither completed not uncompleted tasks are remembered very well d. complete and uncompleted tasks are remembered equally well
The mayor of a large city announced that the incidence of major crimes was down for the third year in a row. Yet a poll of residents who regularly watched the evening news on TV revealed that they still felt the frequency of criminal acts was high and they felt unsafe living in the city. Which rule of thumb was responsible for the persistence of the residents' fears?
a. representativeness heuristic c. anchoring and adjustment heuristic b. persistence heuristic d. availability heuristic