A study of the effects of fluoride in the water supply on level of calcium deficiency in women found a Spearman's rho of +0.30 . Our PRE for this relationship is
a. 30%
b. 90%
c. 3%
d. 9%
d
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In their 1998 research on affirmative action at top universities and colleges, Bowen and Bok found of all the following EXCEPT
a. Most minority students admitted to these schools under affirmative action graduated b. Graduation rates for minority students at these schools were actually higher (even with lower average SATs) than those minority students who attended less select universities and colleges c. Many minority students admitted under affirmative action at these schools earned advanced graduate and professional degrees d. The graduates of these schools have little impact on the numbers of minority professionals in the United States
Which statement is least true of the American economy today?
a. Family incomes have stopped growing. b. Economic stress is felt up and down the economic ladder. c. High unemployment is likely to continue. d. High paying jobs are in good supply for people who want to work hard.
The majority of U.S. jobs are in the tertiary employment sector
a. True b. False Indicate whether the statement is true or false
Social Security's total income will be sufficient to cover annual costs until approximately
a. 2018 b. 2033 c. 2045 d. 2055