BUSA 3321 Project

| June 2, 2016

BUSA 3321 Project

The purpose of this project is to infer from a random sample of countries some characteristics of all countries in the world.

From the class web site link to the CIA Fact Book, select a random sample (using a random number table or random number generator) of 30 countries. For each country observe the following variables:


GDP per capita
Inflation rate

Female literacy rate
Infant mortality rate
Predominant religion

Create an Excel file.

1. For the countries in your sample, use Excel to construct the following graphs (4 points each)
GDP per capita – histogram
Unemployment – relative frequency histogram
Inflation – ogive
Predominant religion – pie chart
Infant mortality vs. Female literacy – scattergram

Construct a 95% confidence interval for the mean GDP per capita. (20 points)

Do your data support the hypothesis that more than half of the countries in the world are predominately Christian? (20 points)

Determine the sample regression line relating infant mortality to female literacy and plot it on a new scattergram. Test the hypothesis thatb1 = 0. Compute a 95% confidence interval estimate forb1. Construct a confidence interval estimate of average infant mortality for all countries with female literacy rates of .85. Predict with an interval an individual country’s infant mortality rate when female literacy rate is .85. Compute a correlation coefficient and coefficient of determination. (20 points)

Interpret the results of the above analysis in a report of no more than one page using non-technical language. This interpretation should be meaningful to a person who has never had a statistics course. (20 points)

Bonus points (up to 10) can be earned for appearance, presentation, of the project.

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