ME 288
EQUATIONS
&
TABLES
HANDOUT
(Revised June 11, 2008)
ME 288 Data Analysis Lab
Equations for Exam
xm =
1n
xi
n i =1
Z
d i = ( xi x m )
n
(x
dm =
i =1
i
n
n
2 =
xm )
(x
i =1
xm )
2
i
n 1
n
=
(x
i =1
xm )
2
i
n 1
The probability density function:
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
5/24/2012
Re:
Final Exam (Take-Home Portion)
ME 288 Student,
A portion of your final exam grade is in the form of this takehome assignment. Your mission is as follows:
Measure something, apply appropria
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
5/8/2012
Re:
Mini Project 2
ME 288 Students,
It is generally understood that the actual mechanical strength of
a material, expressed as a stress, is normally distributed about
the mean (reported) streng
ME 288 Data Analysis Lab:
Experimental error analysis: Multivariate data
(From Chapter 3 of Text by Holman)
An experimentalist has to know the validity of data from the experiment. Error analysis provides
consistency in data analysis and validity.
Experim
ME 288 Data Analysis Lab:
Regression Line and Method of Least Squares
[Here are my personal lecture notes for this topic. These are taken from the
textbook, Wikipedia and other online sources. For more information you can
access the websites listed within
ME 288 Data Analysis Lab:
Chauvenet's Criterion
Lets start with the reminder that every cumulative normal probability (integral of the normal
distribution Pdf=confidence level) corresponds to a range (=confidence interval). The
confidence interval for con
ME 288 Data Analysis Lab:
THE NORMAL (OR GAUSSIAN) PROBABILITY DISTRIBUTION or
PROBABILITY DENSITY FUNCTION (Pdf)
In simple terms, the Pdf is the smoothed-out version of a histogram. The histogram is graphical
whereas the Pdf is the algebraical form. So,
ME 288 Data Analysis Lab:
Statistics
INTRODUCTION:
Most engineering knowledge is founded on empirical data that is, data has been obtained by
careful experimentation. Such data will have some scatter, but they are extremely useful for the
following reason
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
5/24/2012
Re:
Homework 7
ME 288 Student,
You are building a circuit to power some instrumentation youre using
in a lab. You have a limited selection of resistors to pick from, and
you need to create an
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
5/24/2012
Re:
Homework 6
ME 288 Student,
The link below points to raw stress/strain data from a tensile test
of steel. In a tensile test, a piece of material is stretched by a
machine, usually at a cons
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
5/22/2012
Re:
Homework 5
ME 288 Student,
You work for a company that makes laser speed guns for police
departments. You have designed a product, and are currently testing
it for accuracy and precision.
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
5/1/2012
Re:
Homework 3
ME 288 Student,
Write a short memo, explaining the difference between a geometric
tolerance and a size tolerance. Use at least one specific, realworld example where a geometric t
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
4/12/2012
Re:
Homework 2
ME 288 Student,
The two links below point to basic 3-d models of two parts we
have been discussing in class. They should both be made of 1018
Cold-Rolled Steel. Since you are my
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
4/5/2012
Re:
Homework 1
ME 288 Student,
The two links below point to 3-d models of the crank pin we
looked at in class, and a fixture I would like to make for easy
setup of a milling machine to produce
ME 288
Final Exam
Fall 2011
Name _
1
0.9
Cumulative Probability
0.8
0.7
0.6
0.5
Actual
0.4
Normal
0.3
0.2
0.1
0
0.992
0.993
0.994
0.995
0.996
0.997
0.998
0.999
1
1.001
1.002
Diameter [in.]
1.) Based on the chart above, what conclusions can you draw about
memo
ME 288
To:
ME 288 Class
From:
T.J. Cyders
Date:
5/22/2012
Re:
Extra Recitation Exercises
ME 288 Student,
The following are recitation exercises for practice. Numerical
answers will be provided. For extra credit, turn this in by the last
day of class