In a Simple Random Sample of 144 Households in a City

question 43

Multiple Choice

In a simple random sample of 144 households in a city in Kentucky, the average number of children in these households was 1.12 children. The standard deviation from this sample was 2.40 children. A 90 percent confidence interval for the mean number of children in all households in this city is:

• A) 2.40 ± 0.2.
• B) 1.12 ± 0.2.
• C) 1.12 ± 2.40.
• D) 1.12 ± 0.328.
• E) It is impossible to tell without a census.

Understand the changing landscape of labor movements regarding membership and the influence of big business.

Understand key historical strikes and their impact on the labor movement.

Comprehend the role and activities of the AFL in shaping labor standards and union activities.

Recognize the different models of unionism and their foundational principles.

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Definitions:

Seniority System

A seniority system is an organizational structure where employees gain certain benefits or positions based on their length of service.

Merit System

A system of employment and promotion based on the skills, performance, and abilities of employees rather than on nepotism or patronage.

Equal Pay Act

A federal law that prohibits wage discrimination based on sex, ensuring equal pay for equal work performed by men and women.

Family and Medical Leave Act

A United States law that provides eligible employees with unpaid, job-protected leave for certain family and medical reasons.