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Using the dataset, produce a graph of per capita GDP for Argentina, China, and Canada from 1965 to 1995. Is inequality between these countries increasing? What is your evidence? Make sure that your argument full explains how to verify whether inequality between countries is increasing or not. Hint try using the code to produce the graph:
Two-way (line gdppc year if country=="Argentina", legend(label(1 "Argentina") label(2 "Canada") label (3 "China"))) (line gdppc year if country=="Canada") (line gdppc year if country=="China")
Then, make four scatter plots comparing per capita income in the year 2000 (on the Y-axis) to corruption, to political rights, to rule of law, and to socio-political instability. Note that these explanatory variables are "ordinal," meaning that we don't actually know what moving up one unit on, for example, the political rights scale means. All we know is that one level has more "rights' than another. What relationships come through in these plots? Which of the relationships appears to be the strongest? Formulate a hypothesis for why this relationship might be this strong. Report a multiple regression to see if your graphical interpretation of the strongest relationship is correct when controlling for other variables.
Mean threshold values and standard deviations for the three groups are given below. Normal probability plots showed the three populations were well approximated by the Normal distribution.
Compute the range and interquartile range
Prepare a power curve for this decision rule
Describe the sampling distribution of the sample proportion
The Wilcoxon signed rank statistic, The mean for the Wilcoxon signed rank test and The P-value for the Wilcoxon signed rank test
A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car
the maximum point total for the quarter was 200. The point totals for the 10 students are given in the stemplot below. For the density curve displayed below, which of the following is true?
If one person is selected at random, what is the probability that person is Female?
A major study examined the relationship between cause of death (heart attack, cancer, stroke, accident, etc.) and age. A good way to graphically represent the relationship is with
Suppose the probability of the worst-case scenario increases Compute the expected value of perfect information
Use the list of random digits below to assign 4 men and 2 women to the shark fin treatment. Read the table from left to right, first selecting the 4 men and then the 2 women. Use the numerical labels given in the chart to the names.
Draw two pie charts, which allow the total yearly exports to be compared. Explain the trend in the export of fish as shown in the two pie charts.
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