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Using two independent samples, two population means are compared to determine if a difference exists. The number in the first sample is fifteen and the number in the second sample is twelve. How many degrees of freedom are associated with the critical value?
Democracy
A system of government in which power is vested in the people, who rule either directly or through freely elected representatives.
Popular Democrats
A reference to members of the Democratic Party who enjoy widespread support among the electorate.
Vietnam War
A lengthy conflict (1955-1975) between North Vietnam, supported by its communist allies, and South Vietnam, supported by the United States and other anti-communist countries.
Foreign Policy
A government's strategy in dealing with other nations, concerning diplomacy, trade, and national security.
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