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P Chart for Detroit Central Hospital

Detroit Central Hospital is trying to improve its image by providing a positive experience for its patients and their relatives. Part of the program involves providing tasty, inviting patient meals that are also healthy. A questionnaire accompanies each meal served, asking the patient, among other things, whether he or she is satisfied or unsatisfied with the meal. A 100-patient sample of the survey results over the past seven 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 p chart that plots the percentage of patients unsatisfied with their meals. Set the control limits to include 99.73 percent of the random variation in meal satisfaction. Comment on your results.

Solution Summary

A Pchart of survey results data.