THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 70

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Consider the following point estimators,W,X,Y,and Z of μ: W = (x₁ + x₂) /2;
X = (2x₁ + x₂) /3;Y = (x₁ + 3x₂) /4;and Z = (2x₁ + 3x₂) /5.
-Which of the following point estimators is the most efficient?

• A)W
• B)X
• C)Y
• D)Z

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Definitions:

Tradable Pollution Permits

A market-based approach to controlling pollution by offering a limited number of permits that allow the holder to emit a certain amount of pollutants, which can be bought and sold.

Municipal Sewage

Waste water and solids collected from a community, typically transported through a sewer system for treatment or disposal.

Discharge Level

The amount or volume of a substance released into the environment, often related to pollution control.

Emissions Tax

An emissions tax is a levy on the pollution generated by businesses or individuals, aimed at reducing the environmental harm caused by such emissions.