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:

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This term describes the early childhood period, typically between the ages of 3 to 5 years, characterized by rapid growth in language, cognitive, and social skills.

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A Swiss psychologist known for his pioneering work on the development of children's cognitive development and his theory of cognitive development stages.

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A psychological defense mechanism where individuals attribute their own unacceptable thoughts, feelings, or motives to another person.