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An HR administrator wishes to know the proportion of employees that are currently using a very costly benefit to determine if it is still considered

An HR administrator wishes to know the proportion of employees that are currently using a very costly benefit to determine if it is still considered valuable by the staff. If the administrator has no preliminary notion of the proportion of employees using the benefit, how big a sample must she collect to be accurate within 0.09 at the 98% level of confidence?

Standard Normal Distribution Table

Round up to the next whole number

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