Answered: The dean of the College of Business at…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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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