nachine has just been installed to produce pr ce layer. The quality control inspector randor The measurements (in millimeters) for the pe Thickness (millimeters) 1 2 3 4 5 87.1 87.3 87.9 87.0 87.0 86.9 88.5 87.6 87.5 87.4 87.5 88.4 86.9 87.6 88.2 86.0 88.0 87.2 87.6 87.1 87.1 87.1 87.1 87.1 87.1 88.0 86.2 87.4 87.3 87.8
nachine has just been installed to produce pr ce layer. The quality control inspector randor The measurements (in millimeters) for the pe Thickness (millimeters) 1 2 3 4 5 87.1 87.3 87.9 87.0 87.0 86.9 88.5 87.6 87.5 87.4 87.5 88.4 86.9 87.6 88.2 86.0 88.0 87.2 87.6 87.1 87.1 87.1 87.1 87.1 87.1 88.0 86.2 87.4 87.3 87.8
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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Transcribed Image Text:A new machine has just been installed to produce printed circuit boards. One of the critical measurements is the thickness of the
resistance layer. The quality control inspector randomly selects five boards each half-hour, measures the thickness, and records the
results. The measurements (in millimeters) for the period 8:00 a.m. to 10:30 a.m. follow.
Thickness (millimeters)
Time
1
2
3
4
8:00
87.1
87.3
87.9
87.0
87.0
8:30
86.9
88.5
87.6
87.5
87.4
9:00
87.5
88.4
86.9
87.6
88.2
9:30
86.0
88.0
87.2
87.6
87.1
10:00
87.1
87.1
87.1
87.1
87.1
10:30
88.0
86.2
87.4
87.3
87.8
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a. Determine the control limits for the mean and the range. (Leave no cells blank - be certain to enter "O" wherever required. Round
your answers to 2 decimal places.)
Mean of the sample means
LCL =
UCL =
Mean of the sample ranges
LCL =
UCL =
c-1. Are any means out of control?
Yes
O No
c-2. Are any ranges out of control?
O Yes
O No
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