A Job Shop Manager Wants to Determine the Proportion of Time

question 35

Multiple Choice

A job shop manager wants to determine the proportion of time the workers are idle. The shop employs two types of workers. Type 1 includes three workers and Type 2 includes two workers. The manager suspects that the proportion of idle time is about 20 percent for Type 1 workers and 15 percent for Type 2 workers. If the manager wants a 95 percent confidence level (z = 1.96) and a degree of precision of + 0.05, how many trips will the observers have to take through the group?

• A) fewer than or equal to 80
• B) greater than 80 but fewer than or equal to 90
• C) greater than 90 but fewer than or equal to 100
• D) greater than 100

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Definitions:

Social Workers

Professionals dedicated to assisting individuals, families, and communities to cope with challenges and improve their well-being through various interventions.

Competence

The ability or skill to do something successfully or efficiently.

NASW Code

The code of ethics developed by the National Association of Social Workers, guiding principles for professional conduct and decision-making.

Skills

Abilities and expertise developed through practice and education to perform tasks effectively.