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Discussion 1: Immigration Issues - immigration issues have played a large part in U.S. domestic policy and in the current presidential campaign. What should U.S. immigration policy be? Given immigration limits, how should the U.S. decide which people to admit? (e.g., admit relatives of legal U.S. residents; admit only the best trained people; sell the rights to immigrate to the U.S.; etc.). How should the U.S. deal with current illegal immigrants in the country and what implications does this have for future immigration?
Discussion 2: Wage Inequality and Trade - data indicates a growing gap between the wages for skilled and unskilled labor, and several candidates have made this part of the Presidential campaign. What role has trade and immigration played in this process? What implications does outsourcing have for this trend? What policies, if any, should the U.S. take to offset this trend?
Discussion 3: How important are Multinational firms (MNFs) in the world economy? What fraction of world output do they account for, and are they beneficial or harmful? Does the power of MNFs to move anywhere in the world restrict policies of individual governments? Should there be rules limiting their spread?
Suppose you are given the following estimated regression equation: Debt Ratio = 4000 + .20 Cash Flow. If the t-stat for the slope estimate is 3.25, what can you conclude?
(a) Find a jackknife point estimate of the population mean μ ozone level. (b) Construct a 95% jackknife con?dence interval for the population mean μ. (c) Compare the con?dence interval obtained in part (b).
Calculate the mean, median, range, and standard deviation for the Body Fat Versus Weight data set. Report your findings, and interpret the meanings of each measurement.
if the alpha level is changed from a .05 to a .01a. what happens to the boundaries for the critical region?b. what
a group of 14 friends got together for a wine contest. each guest brought his or her favorite bottle of pinot noir.
By looking into this box plot what can you conclude: is this data skewed left, skewed right or it is symmetric
Heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 3 inches.
A sample of 100 orders revealed that 82 were delivered within the promised time. At the 0.10 significance level, can we conclude that less than 90% of the orders are delivered in less than 10 minutes?
A 6-sided dice are rolled. What is the probability of rolling a number that is not an even number
SAT verbal scores are normally distributed with a mean of 401 and a standard deviation of 91. Use the Empirical Rule to determine what percent of the scores lie between 310 and 492.
A professor wants to conduct a study to know whether the grades she gives to her students affect their evaluations of her. She teaches four classes of ten students each.
It is important to look at data in a graphical form. Patterns are the essence of data exploration, and the eye's ability to discern forms and patterns makes visual display integral to the process.
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