How Many Cycles Should Be Used in a Time Study

question 18

Multiple Choice

How many cycles should be used in a time study in order to be 95% confident that the time-study average job cycle time is within 5% of the true average job cycle time? Assume that the average job cycle time is 2.67 minutes,and the standard deviation of the sample is 0.72 minutes.

• A)36 cycles
• B)72 cycles
• C)98 cycles
• D)112 cycles

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Definitions:

Economic Strike

A work stoppage conducted by employees to demand higher wages, better benefits, or improved working conditions from their employer.

Recognition Strike

A type of strike aiming to compel an employer to recognize and negotiate with the union as the official collective bargaining agent for the workers.

Sympathy Strike

A work stoppage by workers in one industry intended to show support for striking workers in a different industry or company.

NLRA

A key piece of legislation in US labor law, the National Labor Relations Act establishes the rights of workers to unionize and negotiate collectively with their employers.