Question 3: The SCO Company serves lunch in a local school. In January, a survey was conducted by distributing a simple questionnaire to 1000 students in the school every day for 10-day, asking that they simply check off that the meal was either satisfactory or unsatisfactory. The numbers of unsatisfactory meals in the survey were: 74, 42, 64, 80, 40, 50, 65, 70, 40, and 75 in the 10 days, respectively. a) Construct the appropriate quality control chart(s). b) In April, another 3-day survey was conducted, and the numbers of unsatisfactory meals were 100, 80, 130, respectively. Is the process of serving lunch overall in control in April?

Practical Management Science
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ISBN:9781337406659
Author:WINSTON, Wayne L.
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Question 3: The SCO Company serves lunch in a local school. In January, a survey was conducted by distributing a simple
questionnaire to 1000 students in the school every day for 10-day, asking that they simply check off that the meal was
either satisfactory or unsatisfactory. The numbers of unsatisfactory meals in the survey were: 74, 42, 64, 80, 40, 50, 65,
70, 40, and 75 in the 10 days, respectively.
a)
b)
Construct the appropriate quality control chart(s).
In April, another 3-day survey was conducted, and the numbers of unsatisfactory meals were 100, 80, 130,
respectively. Is the process of serving lunch overall in control in April?
Transcribed Image Text:Question 3: The SCO Company serves lunch in a local school. In January, a survey was conducted by distributing a simple questionnaire to 1000 students in the school every day for 10-day, asking that they simply check off that the meal was either satisfactory or unsatisfactory. The numbers of unsatisfactory meals in the survey were: 74, 42, 64, 80, 40, 50, 65, 70, 40, and 75 in the 10 days, respectively. a) b) Construct the appropriate quality control chart(s). In April, another 3-day survey was conducted, and the numbers of unsatisfactory meals were 100, 80, 130, respectively. Is the process of serving lunch overall in control in April?
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