In 2003 The World Wealth Report first started publishing market shares of global millionaires (The Wall Street Journal, June 25,2008). At this time, the distribution of the world's people worth $1 million or more was:
A recent sample of 500 global millionaires produces the following results:
a. Test whether the distribution of millionaires in 2011 is different from the distribution in 2003 at α = 0.05.
b. Would the conclusion change if we tested it at α = 0.10?