The Estimated Demand for a Good X Is $\hat { Q } = 70 - 3.5 P - 0.6 M + 4 P _ { Z }$

question 49

Multiple Choice

The estimated demand for a good X is $\hat { Q } = 70 - 3.5 P - 0.6 M + 4 P _ { Z }$ ,where $\hat { Q }$ = units of the good,P = price of the good,M = income,and $P _ { z }$ = price of related good Z.All parameter estimates are statistically significant.Which of the following statements is correct?

• A)X is a normal good.
• B)X is an inferior good.
• C)X and Z are substitutes.
• D)X and Z are complements.
• E)both b and c

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