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You are the newly appointed assistant administrator at a local hospital, and your first project is...

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Operations Management

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 MEALSSAMPLE SIZE
December 1771,000
December 2741,000
December 3621,000
December 4701,000
December 5821,000
December 6501,000
December 7501,000
December 8421,000
December 9541,000
December 10581,000
[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.)

p⎯⎯p¯
Sp
UCL
LCL

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