Ch. 5 Q. 1 - Select the improvement model that would work best for each of the following performance problems. Explain your choices. More than 25 percent of the insurance claims submitted by a clinic are rejected because of mistakes made by the clinics billing clerks. Patients experience long wait times and delays for outpatient diagnostic services. A large number of hospitalized patients develop a wound infection following surgery. Labor costs are too high in the radiology department. In a pediatric clinic, many Spanish-speaking patients are unable to communicate by phone with the receptionists and caregivers because of language barriers