Jan-04 Feb-04 Mar-04 Apr-04 May-04 June-04 Date/Time/Period July-04 Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 0.6 1.6 2.6 Mar-05 Apr-05 May-05 Jun-05 Jul-05- Aug-05 Sep-05 Oct-05 Nov-05 Dec-05 Jan-06 Feb-06 Mar-06 Apr-06 May-06 LCL 1.8 3.6 4.6 5.6 CL f 5.5 6.6 7.6 8.6 9.6 UCL 9.1 10.6

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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Question

Analyzing the data points circled, performance variation is likely attributed to the violation of which control chart criteria?

 

A) 8 points in a row below Center Line (CL)

 

B) 4 or 5 points between +1 σ and +2 σ

 

C) 4 or 5 points between -1 σ and -2 σ

 

D) One point below Lower Control Limit (LCL)

Date/Time/Period
0.6
1.6
2.6
3.6
4.6
Jan-04
Feb-04
Mar-04
Apr-04
May-04
June-04
July-04-
Aug-04
Sep-04
Oct-04
Nov-04
Dec-04
Jan-05
Feb-05
Mar-05
Apr-05
May-05
Jun-05
Jul-05-
Aug-05
Sep-05
Oct-05
Nov-05-
Dec-05
Jan-06
Feb-06
Mar-06
Apr-06
May-06
LCL
1.8
6.6.
7.6
5.6 CL
5.5
8.6
9.6 UCL
9.1
10.6,
Figure 2: Falls per 1,000 Patient Days
Transcribed Image Text:Date/Time/Period 0.6 1.6 2.6 3.6 4.6 Jan-04 Feb-04 Mar-04 Apr-04 May-04 June-04 July-04- Aug-04 Sep-04 Oct-04 Nov-04 Dec-04 Jan-05 Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05- Aug-05 Sep-05 Oct-05 Nov-05- Dec-05 Jan-06 Feb-06 Mar-06 Apr-06 May-06 LCL 1.8 6.6. 7.6 5.6 CL 5.5 8.6 9.6 UCL 9.1 10.6, Figure 2: Falls per 1,000 Patient Days
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