A Work-Sampling Method Is Used to Determine the Proportion of the Time

question 53

Multiple Choice

A work-sampling method is used to determine the proportion of the time a worker is idle.The following information was gathered on a random basis. If the manager wants a 95 percent confidence level and a degree of precision of ± 0.03,how many more observations are needed?

• A)Fewer than or equal to 600
• B)Greater than 600 but fewer than or equal to 800
• C)Greater than 800 but fewer than or equal to 1,000
• D)Greater than 1,000

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