Which of the following is not true of monopolistic competition?

i. in the long run the demand curve will shift to the left until price equals average total cost and economics profit increases.
ii. in the long run it does not operate at minimum average cost.
iii. there are large number of buyers and sellers, it is a price maker, and there are low barriers of entry.

Griffin correctly concludes that the coordinate pair for the russian federation is an influential point, because removing the russian federation from the relationship will significantly change the trend of the regression line. is an influential point, because removing the russian federation from the relationship will not significantly affect the estimated coefficient of determination of the regression line. is not an influential point, because the russian federation does not have the highest cvdir of all 1111 nations in the scatterplot. is an influential point, because removing the russian federation from the relationship will not significantly affect the estimated slope of the regression line. is not an influential point, because the russian federation has a positive residual in the least-squares linear regression.