I am trying to create a service that varies depending on the resources that are used.
For example if a nurse were to carry out the service it could take 10 - 35 mins, whereas if this is carried out by another member of staff it could take 5-25 minutes.
I have had a go - as in the picture below, however, what I've written doesn't seem to be working.
Resource dependent delays
Any help would be massively appreciated!