The administrators decide to categorize all the employees into the following categories: doctors, medical staff (i.e., nurses, technicians, etc.), office staff, and support staff (i.e., custodians, maintenance, etc.). Then, they randomly sample 35 employees from each category. What type of sampling method is this? large hospital is concerned about how satisfied their employees (i.e., doctors, nurses, staff, etc.) are with their jobs. The healthcare administrators of the hospital decide to take a sample of their employees and ask them to take a survey