Null Hypothesis:
The percent change in inflation of end of period consumer prices in the countries that revolted is equal to the inflation of all the other countries in the Middle East from 1980 to 2010. Alternative Hypothesis:
The percent change in inflation of end of period consumer prices in the countries that revolted is not equal to the percent change of all other countries in the Middle East from 1980 to 2010.

Method of Data Analysis: 2-Sample T-Test
Conditions
It can be assumed that the measure of inflation in the two groups (revolted and others in Middle East) are independent of each other and in each group, the individual country's inflation is independent. Each country's measure of inflation was compared individually to every other country.
The distribution for average inflation rates from 1980-2010 is approximatley normal.
degrees of freedom:n-1
number of years assesed=30
df=29

Significance level: t=.5
Significance level in context: I would fail to reject the null hypothesis that the measure of inflation for countries that revolted is equal to the measure of inflation for the rest of the middle east if the probability for this situation occuring is %50 or greater.

Conclusion:

How to interpret this picture:
For example: There is a 93% probability that the inflation of end of period consumer prices as percent change of Bahrain, a country that experienced mass protests against its government, is equal to the inflation of Oman, therefore I would fail to reject the null hypothesis that the average rates of inflation over the past 30 years are equal.

For all other assosiations not noted (ex.Iran and Algeria), the probability that one country's inflation of end of period consumer prices as percent change is equal to that of another country is less than %50, therefore I would reject the null hypothesis that the average rates of inflation over 30 years are equal.

Most Arab countries that have not experienced protests have average inflation rates that are similar to at least one other country that has experienced protests.

Null Hypothesis:The percent change in inflation of end of period consumer prices in the countries that revolted is equal to the inflation of all the other countries in the Middle East from 1980 to 2010.

Alternative Hypothesis:The percent change in inflation of end of period consumer prices in the countries that revolted is

notequal to the percent change of all other countries in the Middle East from 1980 to 2010.Method of Data Analysis: 2-Sample T-TestConditions

It can be assumed that the measure of inflation in the two groups (revolted and others in Middle East) are independent of each other and in each group, the individual country's inflation is independent. Each country's measure of inflation was compared individually to every other country.

The distribution for average inflation rates from 1980-2010 is approximatley normal.

degrees of freedom:n-1

number of years assesed=30

df=29

Significance level: t=.5

Significance level in context: I would fail to reject the null hypothesis that the measure of inflation for countries that revolted is equal to the measure of inflation for the rest of the middle east if the probability for this situation occuring is %50 or greater.

Conclusion:How to interpret this picture:For example: There is a 93% probability that the inflation of end of period consumer prices as percent change of Bahrain, a country that experienced mass protests against its government, is equal to the inflation of Oman, therefore I would fail to reject the null hypothesis that the average rates of inflation over the past 30 years are equal.

For all other assosiations not noted (ex.Iran and Algeria), the probability that one country's inflation of end of period consumer prices as percent change is equal to that of another country is less than %50, therefore I would reject the null hypothesis that the average rates of inflation over 30 years are equal.

Most Arab countries that have not experienced protests have average inflation rates that are similar to at least one other country that has experienced protests.