If the price of milk was $1.25 a gallon and it is now $2.25 a gallon, what is the percentage change in price?
A) 4.4 percent
B) 8 percent
C) 44 percent
D) 80 percent
Answer: D
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In what ways do economists and policymakers who believe that the federal government should have a larger role in the health care system criticize the Patient Protection and Affordable Care Act (ACA)?
What will be an ideal response?
The confidence interval for a single coefficient in a multiple regression
A) makes little sense because the population parameter is unknown. B) should not be computed because there are other coefficients present in the model. C) contains information from a large number of hypothesis tests. D) should only be calculated if the regression R2 is identical to the adjusted R2.
The central bank of a country had, for a time, focused so strongly on reducing inflation that the level of unemployment increased beyond control. Currently, the central bank focuses so strongly on controlling unemployment that the inflation rate has increased. The main problem faced by the central bank is _____
a. it only focuses on a single factor b. it overestimates the inflation rate c. it does not consider the presence of disguised employment d. it is easily influenced by large business houses
The coefficient of determination (R2) decreases when an independent variable is added to a multiple regression model.
Answer the following statement true (T) or false (F)