The management of a supermarket wants to adopt a new promotional policy of giving a freegift to…

The management of a supermarket wants to adopt a new promotional policy of giving a freegift to every customer who spends more than a certain amount per visit at this supermarket. Theexpectation of the management is that after this promotional policy is advertised, theexpenditures for all customers at this supermarket will be normally distributed with a mean of$95 and a standard deviation of $20. If the management decides to give free gifts to all thosecustomers who spend more than $130 at this supermarket during a visit, what percentage of thecustomers are expected to get free gifts?