A Work Sampling Study Is Being Conducted on a Loading

question 17

Multiple Choice

A work sampling study is being conducted on a loading machine in a warehouse.How many observations should be taken if management wants to be 95% confident the estimate is within +6% of the actual proportion of time the loader is busy if management believes the loading machine is in use 70% of the time?

• A)125 observations
• B)175 observations
• C)225 observations
• D)275 observations

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