Detroit Central Hospital is trying to improve its image by providing a positive experience for its patients and their relatives. Part of the "image" program involves providing tasty, inviting patient meals that are also heathful. A questionnaire accompannies each meal served, asking the patient, among other things, whether he or she is satisfied or unsatisfied withthe meal. A 100-patient sample of the survey results over the past 7 days yielded the following data.
Day No. of Unsatisfied Patients Sample Size
1 24 100
2 22 100
3 8 100
4 15 100
5 10 100
6 26 100
7 17 100
Construct a pie chart that plots the percentage of patients unssatisfied with their meals. Set the control limits to include 99.73% of the random variation in meal satisfaction. Comment on the results.