Management believes a critical piece of equipment is busy 85% of the time.How many observations should be taken if management wants to be 98% confident the estimate is within +2.5% of the actual proportion of time the equipment is in use?
A)250 observations
B)525 observations
C)757 observations
D)1,108 observations

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The Answer of Management believes a critical piece of equipment is busy 85% of the time.How many observations should be taken if management wants to be 98% confident the estimate is within +2.5% of the actual proportion of time the equipment is in use?
A)250 observations
B)525 observations
C)757 observations
D)1,108 observations

Management Believes a Critical Piece of Equipment Is Busy 85