Practice Research Questions and Answers

• Park Test is used for which of the following?
• If rxy = 0.4, then r(2x, 2y) is equal to:
• For the regression line of y on x, 2x+7y+32=0, find the value of byx.
• If a constant 60 is subtracted from each of the values of X and Y, then the regression coefficient is
• An event in the probability that will never be happened is called as -
• What will be the value of P(not E) if P(E) = 0.07?                
• Given two lines of regression x+3y=11 and 2x+y=7. Find the coefficient of correlation between x and y.
• What is the standard deviation of first n natural numbers?
• If the demand is 100 during October 2016, 200 in November 2016, 300 in December 2016, 400 in January 2017. What is the 3-month simple moving average for Fe...
• If X and Y are independent random variables and Var(X)=Var(Y)=4, then find Var(2X-3Y+1)?
• Given x=2y+4 and y=kx+6 are the lines of regression of x on y and y on x respectively. Find the value of k if value of r is 0.5.
• What is the probability of getting the sum as a prime number if two dice are thrown?
• If the R2 value for a regression line is 0.70 for 50 observations. What is the adjusted R-square value if the number of independent variables are 9?...
• If price of all commodities rise in the same proportion then,
• Let X and Y be two related variables. The two regression lines are given by x-y+1=0 and 2x-y+4=0. The two regression lines pass through the point:
• Judging from the figure, a person that chooses to consume bundle C is likely to ...
• A firm finds that for the product it produces, its (own) price elasticity of demand is 4. Currently, the firm is selling 1000 units per month at Rs. 5 per ...
• Oligopolies can end up looking like competitive markets if the number of firms is 
• When a firm operates with excess capacity
• Since the 1980s, Wal-Mart stores have appeared in almost every community in America. Wal-Mart buys its goods in large quantities and, therefore, at cheaper...
• To gauge the sacrifice made by a taxpayer, we should use the _____ tax rate. 
• In a market economy 
• Comparative advantage is based on 
• Economists generally believe that making assumptions is 
• A rational decision maker does which of the following? 
• What do you mean by ‘under conditions of a perfect competition in the product market’?
• As the degree of product differentiation increases among the products sold in a monopolistically competitive industry, which of the following occurs?
• If you have found the percentage of the value of sales accounted for by the four largest firms in an industry, you have found the
• If a tax is placed on the product in this market, tax revenue paid by the buyers is the area ...
• The graph that shows the relationship between the size of a tax and the tax revenue collected by the government is known as a
• If a tax on a good is doubled, the deadweight loss from the tax
• Which of the follow statements about price discrimination is not true?
• If the economy is operating at point C, the opportunity cost of producing an additional 20 units of bacon is ...
• The profit-maximizing monopolist will choose the price and quantity represented by point ...
• A two-person zero-sum game means that the 
• Consider the game: Let p=probability prey is active and q=probability Predator is active. What is the mixed strategy Nash equilibrium for the game? ...
• Consider a bargaining game: Find pure strategy Nash equilibrium.
• In the standard IS-LM model, an increase in Government spending (G) without  changing taxes has
• Consider a fractional reserve banking system with a legally required reserve-deposit ratio of m. Suppose that an individual deposits ID dollars in one bank...