Hey I need help with solving this control chart problem?
WorldBest Healthcare System wants to start measuring nursing satisfaction. They decide that each week they will phone 60 patients (30 from a medical unit, 20 from a surgical unit, and 10 from an OB unit). The patients will be asked 9 questions and respond with Excellent, Very Good, Good, Fair, or Poor. It was defined that any answer other than
Excellent would be an unfavorable response. Out of the ...