Which of the following statements is incorrect?

Effort variability refers to the willingness of customers to perform appropriate actions.

With low$-$contact services, it is possible to separate a service into two segments: a service creation portion and a service consumption$/$delivery portion.

Customers may serve as labor at key points in the self$-$service process.

In low$-$contact services, the customer can be removed from the service creation portion thus allowing for greater standardization of processes and better efficiency.

Request variability refers to the uncertainty in when customers will arrive to consume a service.