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suppose you are estimating a simple linear regression model.
(a) If you multiply all the x values by 20, but not the y values, what happens to the parameter values beta1 and beta2 what happens to the least squares estimates b1 and b2? what happens to the variance of the error term?
(b)If you multiply all the y values by 50, but not the x values, what happens to the parameter values beta1 and beta2 what happens to the least squares estimates b1 and b2? what happens to the variance of the error term?
The widget market is competitive and includes no transaction costs. Five suppliers are willing to sell at the following prices: $30, $29, $20, $16, and $12. Five buyers are willing to buy one widget at the following prices: $10, $12, $20,$24, and ..
Assume that there are no transactions or carrying costs. Should you buy or sell wheat futures? If each wheat futures contract is for 5,000 bushels, how many contracts will you buy or sell? How much will you spend or receive in buying or selling th..
Now, test H0: f2 = 0, f3 = 0, and f4 = 0 in the model Price = f0 + f1assess + f2lotsize + f3sqrft + f4bdrms + u The R-squared from estimating this model using the same 88 houses is .829. iv. If the variance of price changes with assess, lotsize, sqrf..
Consider three alternative policies, each with a different set of outcomes in terms of output and inflation, as shown in the following table: Output Policy A (1) 500.0, (2) 515.0, (3) 530.5, (4) 546.4, (5) 562.8. Output Policy B (1) 500.0, (2) 500..
Assume that the marginal cost (supply) of influenza vaccinations is constant at $40. Assume that everyone in society has health insurance that pays 80% of all medical services, including flu shots. Assume first that the flu is not contagious. Defi..
Suppose that college students in your tow persuaded the town council to enact a law settings the maximum price for rental housing at $400 per month. Will this help or hurt college students who rent housing In your answer, address how this price ce..
Company A just paid a $3.00 dividend per share. The dividend is expected to grow at a 4% rate indefinitely. The beta of the stock of Company A is 1.5. The market risk premium is 8% and the risk-free rate is 3%. (a) What is the expected return on t..
According to the chief engineer at the Zodiac Company, Q = ALf Kf , where Q is the output rate, L is the rate of labor input, and K is the rate of capital input. Statistical analysis indicates that f = 0.8 and f = 0.3. The firm's owner claims the ..
Suppose that David has $1000. In the beginning of a year he decided to put his money in a saving account with 5% interest rate per year. The CPI was 150 in the beginning of that year. He expected that the CPI would be 153 in the beginning of the n..
Night Timers is a small company manufacturing glow-in-the-dark products. One of the hottest items the engineering department has developed is adhesive tape that can be applied to walls and floors. Night Timers chief engineer anticipates that the p..
In addition suppose that coffee costs $1 per cup, doughnuts cost $1 each and omar has a budget that he can spend only on doughnuts, coffee or both. How big would that budget have to be before he would spend a dollar buying a first cup of coffee.
Suppose a new manufacturing technology results in an expansion in the supply of electric batteries backup (EBB) in FL of 15%. If the elasticity of demand of EBB sold in FL is -0.4, What would be the new equilibrium price
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