When two independent random samples of sizes 
and 
have been selected from populations with means 
and 
, and variances 
and 
, which of the following is true?
Definitions:
Common Good
A concept referring to either policies or infrastructure that benefit all members of a community or society.
External Good
Often misinterpreted; should likely be "external good," relating to positive externalities, benefits received by those not directly involved in a transaction.
Nonrival-in-consumption
A property of a good whereby one person's consumption does not diminish the utility of that good for others.
Consumption
The process by which goods and services are used up by consumers, reflecting the end use of products and services in an economy.
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