16. The Chair of the Operations Management Department at Quality University wants to construct a p-chart for determining whether the four instructors teaching the basic P/OM course are under control with regard to the number of students who fail the course. Accordingly, the Chair sampled 100 final grades from last year for each instructor, with the following results: Instructor Prof. A Prof. B Prof. C 11 Prof. D 16 Using .95 control limits, (5% alpha risk), which instructor(s), if any, should the Chair conclude is out of control? a) Prof. A only b) Prof. B only c) Prof. C only d) Prof. D only Number of Failures 13 0
16. The Chair of the Operations Management Department at Quality University wants to construct a p-chart for determining whether the four instructors teaching the basic P/OM course are under control with regard to the number of students who fail the course. Accordingly, the Chair sampled 100 final grades from last year for each instructor, with the following results: Instructor Prof. A Prof. B Prof. C 11 Prof. D 16 Using .95 control limits, (5% alpha risk), which instructor(s), if any, should the Chair conclude is out of control? a) Prof. A only b) Prof. B only c) Prof. C only d) Prof. D only Number of Failures 13 0
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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
Transcribed Image Text:16. The Chair of the Operations Management Department at Quality University wants to
construct a p-chart for determining whether the four instructors teaching the basic P/OM
course are under control with regard to the number of students who fail the course.
Accordingly, the Chair sampled 100 final grades from last year for each instructor, with
the following results:
Instructor
Number of Failures
Prof. A
13
Prof. B
0
Prof. C
11
Prof. D
16
Using .95 control limits, (5% alpha risk), which instructor(s), if any, should the Chair conclude is
out of control?
a) Prof. A only
b) Prof. B only
c) Prof. C only
d) Prof. D only
minimum overall
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