Practice Research Questions and Answers

• In classical linear regression model if we add in 90 in X and Y observation and re-estimate the regression model then slope coefficient
• In a frequency distribution the last cumulative frequency is 500. Q3 must lie in?
• Type II error occurs when
• If coefficient of correlation rxy= 1, then
• The credit manager at a Departmental store collects data on 100 of her customers. Of the 60 men, 40 have credit cards (C). Of the 40 women, 30 have credit ...
• The credit manager at a Departmental store collects data on 100 of her customers. Of the 60 men, 40 have credit cards (C). Of the 40 women, 30 have credit ...
• An oil exploration company intends to drill an exploratory well in each of two geologically unrelated regions A and B. If the probability of finding oil in...
• Two mutually exclusive events
• A researcher has to consult a recently published book. The probability of it being available is 0.5 for library A and 0.7 for library B. Assuming the two e...
• If it rains a dealer in raincoats can earn Rs. 400 per day. If it is a fair day he loses Rs. 80 per day. What is his expectation if the probability of a fa...
• The last period’s forecast was 70 and demand was 60. What is the simple exponential smoothing forecast with alpha of 0.4 for the next period? ...
• Let X and Y represent prices in Rs of a commodity in Kolkata and Mumbai respectively. It is given X(bar) = 65, Y(bar) = 67, standard deviation of X = 2.5, ...
• If X(bar) = 25, Y(bar) = 120, bxy = 2. Find the value of X when Y=130?
• Which of the following is not an example of market failure?
• What will happen when supply elasticity is less than demand elasticity? 
• For a monopoly firm, which of the following equalities is always true? 
• For any given price, a firm in a competitive market will maximize profit by selecting the level of output at which price intersects the
• Employing a lawyer to draft and enforce a private contract between parties wishing to solve an externality problem is an example of a(n) ______________cost
• The government provides public goods because 
• Within a country, the domestic price of a product will equal the world price if 
• Claudia would be willing to pay as much as $100 per week to have her house cleaned. John's opportunity cost of cleaning Claudia’s house is $70 per we...
• Market failure is the inability of 
• According to the graph on the right, the equilibrium price in the market before the tax is imposed is  ...
• If demand is price inelastic, then 
• With fixed costs of $400, a firm has average total costs of $3 and average variable costs of $2.50. Its output is:
• The 2nd phase (diminishing returns to a factor) is exhibited by the following total product sequence:
• Crusoe begins with an endowment A. Point R is the consumption combination he would choose at real interest rate r and point R´ is the consumption c...
• Consider the game:   What is the dominant strategy of the game?...
• Two people enter a bus. Two adjacent cramped seats are free. Each person must decide whether to sit or stand. Sitting alone is more comfortable than sittin...
• Guess an even integer between 1 and 100 that is closest to 1/2 of the mean of the guesses, what will be the equilibrium in that case?
• A profit-maximizing monopolist sets an output of 100 per day and a price of £10. Which of the following statements is true?
• A profit-maximizing monopolist finds that if it remains open, the best output is 50 a week, but at this output it would make a loss. Under what circumstanc...
• On a graph for a monopolist or monopolistic competitor, which of the following curves coincide?
• N people guess an integer between 1 and 100, and the winner is the player whose guess is closest to 2 times the mean of the guesses. What is the equilibriu...
• Consider the matching-pennies game:   Let p= probability Player 2 plays left, q= probability Player 1 plays left. Find the mixed-strategy equilibrium....
• In a government budget, revenue deficit is Rs. 50000 crores and borrowing are Rs. 75000 crores. The fiscal deficit will be:
• 'Distributed Profits' is also known as: 
• If factor cost is greater than Market price, then it means that: 
• In a small open economy with a floating exchange rate, the supply of real money balances is fixed and a rise in government spending ______