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Make for more scatter plots comparing GDP growth 1970-2000 to corruption, political rights, rule of law, and socio-political instability, Put GDP growth on the x-axis. What relationships come through in these plots? What is the implication of putting growth on the x-axis? How might an analyst figure out which variable causes which?
Last, formulate and explain a hypothesis regarding the relationship between computer usage and per capita income growth. Since you only have data on computer usage for 2005, create a GDP growth variable for 2000-2005 for this comparison. Make a scatter plot of these two variables to look for evidence of the relationship you predict. Does this plot support your hypothesis? How or how not?
A frequency polygon: does not depend on one variable. True-False
High levels of glucose in the blood are indications of diabetes, which is becoming more prevalent in the United States. Diabetes can lead to many complications such as blindness and heart disease. A random sample of 180 individuals had their blood su..
Recent actual and forecasted data for product XYZ is given in the following table.
The weight of the oranges, in pounds (1 pound = 16 ounces) is a random variable with standard deviation
What is the probability that they all hit the target?
Perform hypothesis testing on one variable's data.
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots.
Which of the following is the appropriate conclusion from carrying out these multiple comparisons
Part 1. What is the appropriate distribution for such data? Part 2. Is this lot anomalous?
The margin of error for a 95% confidence interval estimate for the proportion of all students with cell phones is
where p is the binomial probability of returning a completed survey, and log is the natural logarithm. The multiple logistic regression output from fitting this model is given below.
Which of the following assumptions for inference about a proportion using a confidence interval are violated,
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