Since 1990, the number of native Africans in the United States has______.
A. decreased by 50%
B. more than doubled
C. remained about the same
D. increased slowly
Answer: D
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What effect will using a one-tailed test over a two-tailed test have on power (presuming the true population difference is in the expected direction)?
A) it will increase power B) it will have no effect on power C) it will decrease power D) power cannot be calculated if a one-tailed test is used
Shanna, the wife of a Desert Storm veteran, is interested in writing a book about the experience of being a military wife, living near base, and raising the children alone with the help of other wives of military personnel
This book would most likely be using what perspective? a. symbolic interactionism b. macro c. conflict d. functionalism
When people spend 200 minutes watching an NFL game, they
A. listen to commercials for more minutes than they listen to commentators. B. see more video replays than actual play during the game. C. see more football action than commercials. D. see less than 15 minutes of football action.
The median number of years a person can be expected to live under current mortality conditions is known as:
A. age grades. B. mortality. C. morbidity. D. life expectancy.