This project will provide an overview of the statistical knowledge on 30 random samples of the economy and people from unalike countries around the world. We have continued to use the 30 rude data sample generated from Project Assignment 1 from the CIA position Book web site. The investigation conducted for the electric current project designation will deal with the five numerical variables utilize in the first assignment. Variables to be used to estimate a state mean are gross domestic product per capital, unemployment rate, and inflation rate. Variables to be used to estimate a population proportion are effeminate literacy rate and infant mortality rate. Each of the five condition variables will be investigated independently of the other variables in the current study. The first step in this study will be to evaluate each of the five variables for normality. The second step in this study will be to calculate a 95% confidence interval for each of the numerical variables.
Many unremitting variables used in business closely follow a normal distribution. The first step of this project is evaluating normality to patch up whether a set of data can be approximated by the normal distribution.
The two ways you can do this is by comparing the characteristics of the data with the theoretical properties of the normal distribution and by constructing a normal probability plot. First, we have computed a descriptive statistics and compare these statistics with the theoretical properties of the normal distribution. Based on the descriptive statistics the mean and mode for all the five variables are not equal or symmetrical, the interquartile range is not approximately 1.33 quantify the standard deviation, and the range is also not 6 clock the standard deviation. None of the distribution is bell-shaped which a airscrew of the normal distribution. This concludes that all five data cannot be approximated by the normal distribution.
| Mean| Standard Deviation| Median|
GDP Per...If you want to get a full essay, order it on our website: Ordercustompaper.com
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