The dean of the College of Business at State Universitywants to monitor the quality of the work performed by the college’s secretarial staff. Each completed assignment is re-turned to the faculty with a check sheet on which the faculty member is asked to list the errors made on the assignment.The assistant dean has randomly collected the following setof observations from 20 three-day work periods: Construct a process control chart for secretarial work qual-ity using 3 limits and determine if the process was out of control at any point. Use pattern tests to determine if anynonrandom patterns exist. Number of Number ofSample Errors Sample Errors1 17 11 122 9 12 173 12 13 164 15 14 235 26 15 246 11 16 187 18 17 14

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 5E: List the sample space of each experiment. Rolling one die and tossing one coin
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The dean of the College of Business at State University
wants to monitor the quality of the work performed by the

college’s secretarial staff. Each completed assignment is re-
turned to the faculty with a check sheet on which the faculty

member is asked to list the errors made on the assignment.
The assistant dean has randomly collected the following set
of observations from 20 three-day work periods:

Construct a process control chart for secretarial work qual-
ity using 3 limits and determine if the process was out of

control at any point. Use pattern tests to determine if any
nonrandom patterns exist.

Number of Number of
Sample Errors Sample Errors
1 17 11 12
2 9 12 17
3 12 13 16
4 15 14 23
5 26 15 24
6 11 16 18
7 18 17 14

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