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A labor rights group wants to determine the mean salary of app-based drivers. If she knows that the standard deviation is $2.6, how many drivers

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A labor rights group wants to determine the mean salary of app-based drivers. If she knows that the standard deviation is $2.6, how many drivers should she consider surveying to be 90% sure of knowing the mean will be within _ $0.77? 0 31 06 19 209 26

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