Increased number of divorce couples and the rise of two income families causes the measured distribution of income to appear more equal

The t-statistic measures

A) the efficiency of the t-test relative to the standard z-test. B) the probability that the estimated coefficient is within the range of the standard error. C) whether the estimated coefficient is independent of the standard error. D) whether the estimated coefficient is large relative to the standard error.

Suppose there is no change in total revenue when the price changes. The demand curve for this good is:

A. perfectly elastic. B. perfectly inelastic. C. elastic. D. unitary elastic.