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Question: Consider a study to evaluate the effect on college student grades of dorm room Internet connections. In a large dorm, half the rooms are randomly wired for high-speed Internet connections (the treatment group), and final course grades are collected for all residents. Which of the following pose threats to internal validity, and why?
a. Midway through the year all the male athletes move into a fraternity and drop out of the study (their final grades are not observed).
b. Engineering students assigned to the control group put together a local area network so that they can share a private wireless Internet connection that they pay for jointly.
c. The art majors in the treatment group never learn how to access their Internet accounts.
d. The economics majors in the treatment group provide access to their Internet connection to those in the control group, for a fee.
Provide data on levels of imports and exports throughout 2000-2010. (Annual numbers for each year is ideal) Look at the value of imports and exports in real (inflation-adjusted) dollars or you can present them as a % of GDP.
How does the expected duration of unemployment compare across the two individuals? How does the wage each individual expects to receive compare across the two individuals?
Explain how many major wireless phone handset manufacturers are there. What is the market structure. What pricing strategies do wireless phone handset manufacturers use.
Explain the difference between active monetary policy and passive monetary policy, commenting on the Federal Reserve's use of monetary policy since the early 1980s.
what is the fiscal and montery policy actions in saudi arabia since the start of the global financial crisis from
Using the framework presented in this chapter, draft a sample issue-specific security policy for an organization. At the beginning of your document, describe the organization for which you are creating the policy and then complete the policy using..
suppose a consumer has 150 to spend on food and clothing. food costs 4 per unit and clothing costs 5 per unit. the
What are comparable real salaries? A job paid $57,000 in 2002. The CPI in 1960 was 29.6, compared to 179.9 in 2002. In 1960, what salary would be comparable to 2002's $57,000 in real terms?
Make supply and demand diagrams for market A for each of the following. Use these diagrams to determine how each of following changes in demand or supply affect equilibrium price & equilibrium quantity.
Suppose that the long-run total cost curve for each firm is given by TC = 500Q - 20Q2 + Q3, where Q is the quantity of the product. Also suppose there is free entry and exit. To find the quantity where ATC is minimized, the firm would need to solv..
The inspection equipment has a 6-year useful life and no salvage value. Use a nominal 18% interest rate in your calculations. How much can Robot afford to pay for equipment if the wages and worker benefits were to have been paid monthly?
Write a modularized program that will utilize a main menu to control the program's functions and a list to store the members of your team. The following functions that your program needs to include:
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