Answered: NET WEIGHT SAMPLE LOAF #1 LOAF #2 LOAF…

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

Organic Grains LLC uses statistical process control to
ensure that its health-conscious, low-fat, multigrain sandwich
loaves have the proper weight. Based on a previously stable and
in-control process, the control limits of the x - and R -charts are
UCLx = 6.56. LCLx = 5.84, UCLR = 1.141, LCLR = 0. Over
the past few days, they have taken five random samples of four
loaves each and have found the following:

NET WEIGHT
SAMPLE
LOAF #1
LOAF #2
LOAF #3
LOAF #4
1
6.3
6.0
5.9
5.9
6.0
6.0
6.3
5.9
6.3
4.8
5.6
5.2
6.2
6.0
6.2
5.9
6.5
6.6
6.5
6.9
Is the process still in control? Explain why or why not. Px
6 ui 6
2.
4.

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