Question 16.18

16.18 Economic growth.

The most commonly used measure of economic growth is the rate of growth in a country’s total output of goods and services gauged by the gross domestic product (GDP) adjusted for inflation. The level of a country’s GDP growth reflects on the growth of businesses, jobs, and personal income. Here are World Bank data on the average growth of GDP (percent per year) for the period 2010 to 2013 in developing countries of Europe:7

reggdp

Country Growth Country Growth
Albania 2.3 Macedonia, FYR 2.1
Armenia 4.4 Moldova 5.5
Azerbaijan 3.2 Montenegro 1.7
Belarus 4.0 Romania 1.3
Bosnia and Herzegovina 0.4 Serbia 0.9
Bulgaria 0.9 Turkey 6.0
Georgia 5.6 Ukraine 2.9
Kosovo 3.4

Here are the data for nearby developing countries of the Central Asia:

Country Growth Country Growth
Uzbekistan 8.2 Kyrgyz Republic 4.0
Turkmenistan 11.3 Kazakhstan 6.5
Tajikistan 7.2
  1. Arrange the 20 observations in order and assign ranks. Be aware of ties.
  2. What is the rank sum for the Central Asia region?
  3. Perform the two-sided test at the level, making sure to report the test statistic, and -value. What is your conclusion?