Among All Unbiased Estimators That Are Weighted Averages of Y₁ $\bar { Y }$

question 7

Multiple Choice

Among all unbiased estimators that are weighted averages of Y₁,..., Y_n $\bar { Y }$ , is

• A)the only consistent estimator of µ_Y.
• B)the most efficient estimator of µ_Y.
• C)a number which, by definition, cannot have a variance.
• D)the most unbiased estimator of µ_Y.

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Definitions:

Interest Rates

The amount charged by lenders to borrowers for the use of assets, expressed as a percentage of the principal, and typically noted on an annual basis.

Excess Return

The return on an investment over the risk-free rate or over an investment's benchmark.

Rapid Growth

Rapid Growth refers to a significant and faster-than-average increase in the size, revenue, or market share of a company or economy.

Economy

The large system that encompasses all production, exchange, distribution, and consumption of goods and services within a certain area. It involves activities and interactions among individuals, businesses, and governments.