World economic competition has increased because
a. the world system has been dismantled.
b. there are now cartels for every raw material.
c. most nations have reached equivalent levels of industrialization.
d. Japan and Europe rebuilt their factories after World War II.
e. foreign colleges train so many North American students.
d
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In recent decades, high-rise public housing
a. has expanded to every city in the United States. b. has fallen out of favor, with some projects even being torn down. c. has been constructed mostly in the suburbs. d. has been converted to upscale shopping malls.
Global increases in carbon dioxide concentration are due primarily to a. nuclear waste
b. chlorofluorocarbons (CFCs) used in spray cans, refrigerators, and air conditioners. c. use of fossil fuels. d. fumigants for crops and pest control.
Student exchange programs help educate future workers about different cultures.
Answer the following statement true (T) or false (F)
Bill would like to investigate the effectiveness of attending prep classes on SAT scores. Bill also plans to measure other variables like high school grades, study hours, and family background, which can potentially influence SAT scores. What statistical procedure should Bill use to analyze his data?
a. person's correlation b. multiple regression c. chi-square d. t-test