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:

Symbolic Form

An abstract representation of logic statements using symbols to represent logical operations and relationships.

Components

The individual parts or elements that make up a complex system, machine, or device.

Connective

In logic and philosophy, a term or operation that links propositions together in compound sentences, such as "and", "or", and "not".

Symbolic Form

The representation of objects or concepts through symbols or a system of symbols in a structured and conventional manner.