Assume that a community is made up of almost exactly equal numbers of these four groups: African Americans, Asian Americans, Hispanic Americans, and white Americans, and that everyone is of the same socioeconomic status. Approximately what percent of suicides would you expect to be committed by white Americans?
A) 5 percent—well below the rates for the other groups
B) 25 percent—about the same as the rates for the other groups
C) 40 percent—about double the rates for the other groups
D) 60 percent—almost four times the rates for the other groups
Answer: C) 40 percent—about double the rates for the other groups
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a. optimization. b. compensation. c. generativity. d. selection.
A researcher administers a treatment to a sample of participants selected from a population with µ = 80. If a hypothesis test is used to evaluate the effect of the treatment, which combination of factors is most likely to result in rejecting the null hypothesis?
A) ?A sample mean near 80 for a small sample B) ?A sample mean near 80 for a large sample C) ?A sample mean much different than 80 for a small sample D) ?A sample mean much different than 80 for a large sample