In tests of significance, if the test statistic falls in the critical region, we may conclude that
a. the population distribution is normal
b. the null hypothesis can be rejected
c. the research hypothesis is true
d. our sample size was too small
b
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African Americans were especially important during the Industrial Revolution for
a. working in Northern factories. b. working in Southern factories. c. working as laborers in Southern agriculture. d. becoming independent farmers throughout the South and North.
Early Italians migrated to the U.S .for all of the following but
a) religious freedom. b) economic gain. c) social stability. d) family maintenance.
Prior to World War II, how many black physicians graduated annually in the United States?
A. 250 B. 20 C. 175 D. 120
Incest is governed by universal cultural norms
Indicate whether the statement is true or false