Imagine You Are Estimating the Difference Between Two Population Means

question 10

Multiple Choice

Imagine you are estimating the difference between two population means by comparing 95% confidence intervals. If you use the 2SE rule of thumb and have desired margin of error of 5 cm, what is the approximate minimum sample size for each of the samples if the population standard deviation is 15 cm?

• A) n = 108
• B) n = 120
• C) n = 132
• D) n = 144

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Definitions:

Social Stratification

The hierarchical arrangement and classification of individuals and groups in any given society based on wealth, power, prestige, or other criteria.

Working-Class

Describes individuals or groups who are employed in low-paying wage jobs, often involving manual or industrial labor, and typically associated with lower socioeconomic status.

Social Stratification

The arrangement or classification of society into levels or layers based on factors such as wealth, occupation, and social status.

Feudalism

A social and economic system in medieval Europe where land was held by nobles in exchange for military service, and labor was provided by peasants who lived on their land.