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A survey of Internet users reported that 15% downloaded music onto their computers. The filing of lawsuits by the recording industry may be a reason why this percent has decreased from the estimate of 33% from a survey taken two years before. Suppose we are not exactly sure about the sizes of the samples. Perform the calculations for the significance tests and 95% confidence intervals under each of the following assumptions. (Use previous - recent. Round your test statistics to two decimal places and your confidence intervals to four decimal places.)
(i) Both sample sizes are 1000.
z=
95% C.I. (_____,_____)
(ii) Both sample sizes are 1600.
(iii) The sample size for the survey reporting 33% is 1000 and the sample size for the survey reporting 15% is 1600.
Summarize the effects of the sample sizes on the results.
While cartels are generally illegal in the US, Congress in 1918 passed a law that allows American firms to form export cartels that collude specifically on products exported out of the US. Discuss whether each of the following features will make expo..
If a firm's total cost function is given byT C= 115,000Q-500Q2+Q3, what range of output does the firm have economies of scale?
What is the equation for national saving? Calculate the equilibrium interest rate, aggregate level of investment in the economy, and the aggregate level of national saving. Illustrate in a diagram.
Complete questions by filling the blanks and/or circling (or highlighting) a correct choice.
The government decides to tax cookbooks because they feel that they encourage overeating and can lead to health issues, such as obesity and heart disease. Answer the following
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Suppose that the government decides to tax potato chip producers for every bag of chips sold. Before the tax, 100 million bags of potato chips were sold every year at a price of $3 per bag. What is the amount of the tax per bag of potato chips? What ..
An economy has the following money demand function: (M/P)^d = .2Y/i^(1/2). Derive an expression for the velocity of money. What does velocity depend on? Explain why this dependency may occur. Calculate velocity if the nominal interest rate i is 4%. I..
A company is considering the purchase of a new piece of equipment. The new equipment is expected to reduce manufacturing costs by $20,000 per year for 2 years, and by $15,000 per year for years 3 through 6. What is the present worth of these cost sav..
Stocks4U needs to develop an app for you to manage your stock purchases. You should be able to store a list of stock purchases, view the individual stocks
Calculate the appropriate test statistic. Round your test statistic to 1 decimal place.
In a small open economy, if exports equal $40 billion, imports equal $10 billion, and domestic national saving equals $35 billion. (a) Calculate the amount of investment in this economy. (b) How much is the net capital outflow? (c) What will happen t..
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