You are the newly appointed assistant administrator at a localhospital, and your first project is to investigate the quality ofthe patient meals put out by the food-service department. Youconducted a 10-day survey by submitting a simple questionnaire tothe 400 patients with each meal, asking that they simply check offthat the meal was either satisfactory or unsatisfactory. Forsimplicity in this problem, assume that the response was 1,000returned questionnaires from the 1,200 meals each day. The resultsare as follows:
| NUMBER OF UNSATISFACTORY MEALS | SAMPLE SIZE |
| December 1 | 77 | 1,000 |
| December 2 | 74 | 1,000 |
| December 3 | 62 | 1,000 |
| December 4 | 70 | 1,000 |
| December 5 | 82 | 1,000 |
| December 6 | 50 | 1,000 |
| December 7 | 50 | 1,000 |
| December 8 | 42 | 1,000 |
| December 9 | 54 | 1,000 |
| December 10 | 58 | 1,000 |
| [s23)] | 10,000 |
|
a. Determine the p⎯⎯p¯ ,Sp, UCL and LCL based on thequestionnaire results, using a confidence interval of 95.5 percent,which is two standard deviations. (Round your answers to 4decimal places.)
