Rachel Berg
GE 100
Design and Manufacturing
Due: 12/8/2015
1.
-identify the need for the product or system
-generate and calculate the specifications of the product or system
-draw up solutions
-test them
-make improvements if necessary
-determine the mos
Introduction
Notched bend tests are conducted on Steel
1045 Hot-Rolled, Aluminum 6061 and
PMMA [1]. Each specimen has a
rectangular cross-sectional shape and
come with either a sharp notch or a round
notch at the c
Introduction
Tensile tests are being conducted on 6
different materials: cast iron, 1045 steel
cold rolled, 1045 steel normalized, 6061T6 Aluminum, 304 stainless steel, and
Polymethylmethacrylate (PMMA) [1]. An
Instron testing machine is used for
stretchi
Introduction
Four-point bending tests are conducted on
Steel 1045 Hot-Rolled, Aluminum 6061
and PMMA [1]. The specimens have
rectangular cross-sectional shape, and the
Instron Model 4400 testing machine will
gradually load up to 100kN on the
specimen befo
Results
Engineering Stress vs. Strain graph is
constructed with both compression and
tension curve for each material [1].
and a little bit wider in 90 degrees to the
axis of principal axis. Figure 2 is a
comparison
between
the
original
specimen and the sp
Introduction
The tensile properties and behaviors under
tensile load of six materials are tested in this
lab. Specimens made of xxx are tested. Each
specimen was placed in the Instron model
4400 load frame and underwent increasing
uniaxial load until it f
Inference for two samples
Chapter 10
Not covered: 10-5
1
Comparing two populations
Does a diet and exercise program reduce blood cholesterol level?
Compare means of blood cholesterol level before/after
Does Aspirin reduce heart attack risk?
Compare hear
Confidence Intervals
Chapter 8, all sections except 8-7
1
Estimate population mean
Estimate population mean using sample mean Accuracy/precision: sampling distribution (CLT or normal population)
X ~ N ( , 2 / n)
Measure of precision: standard error
SE :
Parameter Estimation
Chapter 7 (7-4.1,7-4.3 excluded)
Inferential statistics
Using sample data to draw conclusions about a population Inferential statistics
Parameter estimation (mean, variance, proportion) Confidence interval Testing hypotheses (statem
HW2: Page 2 of this document Print out page 2 and work on it directly. It will be accepted in this way only. All others will be returned without grading. If you need extra space, use the back of the page and note that you have done so. Please write down y
HW1: Page 2 of this document Print out page 2 and work on it directly. It will be accepted in this way only. All others will be returned without grading. If you need extra space, use the back of the page and note that you have done so. Please write down y
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IE 300 / GE 331 HW7
From http:/finance.yahoo.com, download daily prices for NASDAQ-100 (^NDX) and Google Inc. (Goog) from 8/19/2004 to 03/26/2010. Create a csv file containing 5 columns: one column for the date, two columns for the
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IE 300 / GE 331 HW6
Amazon_Monthly.txt contains monthly prices and returns of Amazon's stock. Use R to compute the following. Copy and paste your R commands and outputs to this word file, and identify the required quantities. Solut
IE 300 / GE 331 Discussion Problem Set 11
8-10
The 99% confidence interval on the mean hole diameter is - 0.005 + 0.005
= 10, = 1.5045, = 0.01, 0.005 = 2.58
a) 0.05,14 = 1.761 b) 0.01,19 = 2.539 c) 0.001,24 = 3.467 8-22
1.4963 1.5127.
8-32 a) The data
IE 300/GE 331 Discussion Problem Set 8
Using the data in 6-22, calculate the sample mean, sample standard deviation, sample median, first and third quartiles, sample range and IQR in R. Save the data in 6-22 in a text file (e.g. chap6.txt) in your working