A weight-loss clinic guarantees that its new customers will

Last updated: 7/22/2022

A weight-loss clinic guarantees that its new customers will lose at least 5 lb by the end of their first month of participation or their money will be refunded. If the loss of weight of customers at the end of their first month is normally distributed, with a mean of 5.6 lb and a standard deviation of 0.81 lb, find the percent of customers who will be able to claim a refund.