A Researcher Is Estimating the Average Difference Between Two Population

question 8

Multiple Choice

A researcher is estimating the average difference between two population means based on matched?pairs samples.She gathers data on each pair in the study resulting in: Assume that the data are normally distributed in the population.To obtain a 95% confidence interval,the table t value would be _______.

• A)2.132
• B)1.86
• C)2.306
• D)2.976
• E)2.776

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Definitions:

Market Power

The ability of a firm or group of firms to control prices or exclude competition within a market.

Influence Market Prices

The action or power of a factor to affect the prices in a market, which could be through supply, demand, or external factors.

Externality

A consequence of an economic activity experienced by unrelated third parties; can be either positive or negative.

Neighbors

Individuals or entities located near one another, often used in the context of residential, geographic, or international proximity.