Slavery was an integral part of the __________

The procedure used most often to quantify degrees of validity and reliability is

A) a chi-square test. B) an analysis of variance (ANOVA). C) a correlation coefficient. D) the multivariate analysis coefficient.

A natural monopoly exists in a situation in which ______.

A. competition decreases a good’s price B. it is impossible to exclude someone from consumption of a good C. competition in the provision of a good or service would raise costs and reduce efficiency D. one supplier controls the entire supply of a good or service