Which of the following is the best way to reduce the variances in the distributions of means when conducting a t test for independent means?
A) Increase the size of the samples
B) Increase the study’s level of significance
C) Use the true population variance
D) Treat the two samples as one sample
Answer: A
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According to control theory, a youth who stays out of trouble with the law most likely:
a. had few unpleasant experiences during childhood. b. has no delinquent peers to put pressure on him or her. c. has strong relationships with parents, teachers, and peers. d. has confidence in his or her future occupational success. e. has the mental ability to avoid slipping into deviant acts.
Someone interested in understanding how social movements all go through would be doing macro-level sociology
Indicate whether the statement is true or false
Research in the United States and other countries has consistently shown that people in the lower classes have
A. lower mortality rates. B. higher rates of mortality and disability. C. lower rates of cancer and heart disease. D. both higher rates of mortality and disability and lower rates of cancer and heart disease.
The region of the world that is expected to have the highest level of mortality for those under age 5 in the middle of this century is
a. Africa. b. Asia. c. North America. d. Latin America.