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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?
It has been claimed that women live longer than men; however, men tend to be older than their wives. Ages of sixteen husbands and wives from England were obtained. The null hypothesis of equality of means is rejected. What conclusion can be made f..
In which of the following situations is bootstrapping (and other resampling methods) often used and Which of the following is a valid description of the bootstrapping method.
An experiment was performed to investigate lifetime of a component exposed to high heat. Three different oven types were used at either 550°F or 600°F.
This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained.
The chance both flights are full is 0.6. Are the two flights being full independent events and What was the mean ranking for the females in this class
Researchers are studying the absorption of two drugs into the bloodstream. Each drug is to be injected at three dosages. There are 24 people in the study, and they are randomly divided into six groups.
The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast
Based on these results, the proportion of the variation in 1993 winnings that is explained by the average number of putts per round and driving distance
What is the P-value of the test, assume the standard deviation is 3 years, a 95% confidence interval for the average time
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.
If a technical breakthrough occurred that raised the profit per unit of X 1 to $3, would this affect the optimal solution?
The amount ($1.00, $5.00, $10.00, $25.00, or $50.00) promised to each person was determined by randomization. For each person who was sent one of the surveys, The value of the X2 test statistic for testing the hypothesis
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