The average expenditure on Valentine's Day was expected to be $ XXXXXXXXXXThe average expenditure in a sample survey of 40 male consumers was $138.29 and the average expenditure in a sample survey of...

The average expenditure on Valentine's Day was expected to be $100.89. The average expenditure in a sample survey of 40 male consumers was $138.29 and the average expenditure in a sample survey of 30 female consumers was $61.66. Based on past surveys, the standard deviation for male consumers is assumed to be $32, and the standard deviation for female consumers is assumed to be $14. The z value is 2.576.

At 99% confidence, what is the margin of effort?