By 2030, according to projections, people over the age of sixty-five will represent what percentage of the U.S. population?
a. 2 percent
b. 20 percent
c. 30 percent
d. 50 percent
(Answer: b)
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In a recent national survey of Americans' attitudes on controversial issues, researchers found that on none of the issues presented did more than __________ percent of the respondents line up on either the conservative or liberal side of the
question. a. 16 b. 26 c. 36 d. 46 e. 56
According to dependency theory, under colonialism European powers a. promoted the development of their colonies as a way of increasing profits
b. helped colonies to improve the production of their goods in order to sell them on the global market. c. kept colonies underdeveloped to avoid competition from them. d. fostered the political independence of colonies so they could protect colonial investment.
Legal, or de jure, segregation has been outlawed in the United States since the 1960's, and since then an evenly spread heterogeneity of urban spaces and households has developed.
Answer the following statement true (T) or false (F)
Suppose you are interested in comparing the mean number of hours worked by sex. Use the information below to calculate the value of the independent samples t statistic. Weekly Hours Worked WomenRange59Minimum value11Maximum value70Mean37.28Variance142.88Standard deviation11.95Sum2013Number of observations54Weekly Hours Worked MenRange60Minimum value5Maximum value65Mean42.31Variance100.00Standard deviation10.00Sum1,227Number of observations29
What will be an ideal response?