TEST BANK FOR Essentials Of Statistics For The Behavioral Sciences 10th Edition Frederick J Gravetter, Larry B. Wallnau, Lori Ann B. Forzano, James E. Witnauer Chapter 01 1. A researcher uses an anonymous survey to investigate the television-viewing habits of 100 American adolescents. The researcher plans to make an inference about the television-viewing habits of all American adolescents based on the results of the survey. The entire group of American adolescents is an example of a _____. a. sample
b. statistic c. population d. parameter ANSWER: c DIFFICULTY: Apply REFERENCES: 1.1 Statistics, Science, and Observations KEYWORDS: Bloom’s: Apply 2. A researcher uses an anonymous survey to investigate the social media habits of American college students. Based on the set of 300 surveys that were completed and returned, the researcher finds that students spend an average of 2 hours each day using social media. The set of 300 students who returned surveys is an example of a _____. a. parameter
b. statistic c. population d. sample ANSWER: d DIFFICULTY: Apply REFERENCES: 1.1 Statistics, Science, and Observations KEYWORDS: Bloom’s: Apply 3. In order for a researcher to obtain a random sample, they need to specifically do which of the following things? a. rule out confounding variables b. ensure that each person in the population has an equal chance of being selected for the sample c. make certain that results are valid d. make sure that each participant has an equal chance of being assigned to each experimental condition ANSWER: b DIFFICULTY: Understand REFERENCES: 1.1 Statistics, Science, and Observations KEYWORDS: Bloom’s: Understand 4. In contrast to a datum, which of the following descriptions is most consistent with the concept of data? a. the mean average of 15 participants’ individual scores on a problem-solving task b. the percentile that the score of 1 participant on a problem-solving task falls into Copyright Cengage Learning. Powered by Cognero.
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