Down-To-Earth sells houses. The following table represents the selling price of a house (y) in thousands of rands and the number of houses sold at that price (x): x 5 15 19 7 y 500 900 1500 2 000 The correlation coefficient of a linear regression between x and y is approximately [1] 5,72. [2] −0,16. [3] 0,16. [4] 4,00. [5] none of the above

/in /by

Down-To-Earth sells houses. The following table represents the selling
price of a house (y) in thousands of rands and the number of houses
sold at that price (x):

x 5 15 19 7

y 500 900 1500 2 000

The correlation coefficient of a linear regression between x and y is
approximately

[1] 5,72.

[2] −0,16.

[3] 0,16.

[4] 4,00.

[5] none of the above

You might also like
Suppose the United States has no exports. The only imports of the US are 400 Mercedes Benz cars worth US$50,000 each from Germany. Germany has no imports and only exports those 400 cars to the US. Neither the US nor Germany trade with any other countries or engage in any transactions with other countries. Which one of the following statements must be true? (3) a) The US has a capital account deficit b) Germany has a current account deficit c) Germans are buying US assets d) The exchange rate of USD per Euro must be > 1 e) None of the above Explain your choice in detail: What would be the value of US-Germany trade?
If the cross elasticity of demand between two goods is negative, * A. ONE OF THE GOODS MUST BE INFERIOR. * B. THE TWO GOODS ARE COMPLEMENTS. * C. ONE OF THE GOODS MUST BE A NECESSITY. * D. THE TWO GOODS ARE SUBSTITUTES.
Suppose the market for almonds is in equilibrium. Consumers are expecting that the price of almonds will increase in future in the market. If all other variable are held constant, what would you expect for the new price and quantity of almonds?
Suppose the short run market price a competitive firm faces is 9 dollar and the total cost of the firm is : TC = 200 + Q + 0.02Q2 A) calculate the producer surplus at the equilibrium output B) find the output level that will make the profit of the firm zero
Suppose that a researcher estimates a consumption function and obtains the following results: C=15+0.81Yd n=19 R2=0.99 (3.1) (18.7) where C=Consumption, Yd=disposable income, and numbers in the parenthesis are the ‘t-ratios’ a. Test the significant of Yd statistically using t-ratios b. Determine the estimated standard deviations of the parameter estimates
Suppose that, as part of an international trade agreement, the U.S. government reduces the tariff on imported coffee. Will this affect the supply or the demand for coffee? Why? Which determinant of demand or supply is being affected? Show graphically with before- and after-curves on the same axes. How will this change the equilibrium price and quantity of coffee? Explain your reasoning.
If the advent of new and better technology in a perfectly competitive market leads to a large reduction in costs of production, how will this affect the market?
Briefly state the basic characteristics of pure competition, pure monopoly, monopolistic competition, and oligopoly. Into which of these market classifications does each of the following most accurately fit? (a) a supermarket in your hometown; (b) the steel industry; (c) a Kansas wheat farm; (d) the commercial bank in which you have an account; (e) the automobile industry. In each case, justify your classification.