THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 134

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Suppose that x₁ and x₂ are random samples of observations from a population with mean μ and variance σ².Consider the following three point estimators,X,Y,and Z,of μ: X = (x₁ + x₂)/2,Y = (x₁ + 3x₂)/4,and Z = (x₁ + 2x₂)/3.
-Show that all three estimators X,Y,and Z are unbiased.

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Definitions:

Market Segmentation

The practice of dividing a target market into smaller, more defined categories based on various characteristics.

Starbucks

Starbucks is a global coffeehouse chain known for its signature coffees, teas, and other beverage and food offerings, operating in numerous countries around the world.

Customer Service

Help and counsel given by an organization to customers who acquire or engage with its offerings.

Relationship Marketing

A strategy designed to foster customer loyalty, interaction, and long-term engagement rather than focusing solely on short-term goals such as customer acquisition and individual sales.