Random samples were selected from three populations. The data obtained are shown below. Please note that the sample sizes are not equal. 
a.Compute the overall mean 
.
b.At 95% confidence using the critical value and p-value approach, test to see if there is a significant difference among the means.
Definitions:
Participation
The act of taking part or being involved in an activity, process, or decision-making.
Representation
The act of speaking or acting on behalf of someone or the depiction of an idea, concept, or individual in a particular way.
Authoritarian
A governing or political system concentrated around a leader or a small elite that does not allow political pluralism, expects absolute obedience, and often restricts individual freedoms.
Totalitarianism
Totalitarianism is a political system where the state recognizes no limits to its authority and seeks to control every aspect of public and private life.
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