1
1-1 The Engineering Method and Statistical Thinking
An engineer is someone who solves problems of interest to society by the efficient application of scientific principles by Refining existing products Designing new products or processes
1-1 The Enginee

EIN 3235 Mid-term Exam (Spring 2010) PantherID: Name:
Instruction: Your can submit printed or hand-written solution on class. Alternatively, solution can be submitted via email to [email protected]; please make sure that you get confirmation of receipt fro

Exercises for Section 2.1
6. In a laboratory test of a new engine design, the
emissions rate (in mg/s of oxides of nitrogen,
NOX) was measured as a function of engine
speed (in rpm). The 8 results are presented in
the following table.
Speed
Emissio
ns
167

Final exam for EIN 3235 Spring 2010 Panther ID: Name:
Instruction: Solution should be submitted (1) via email to [email protected]; please make sure that you get confirmation of receipt from the instructor. Or (2) submit hard copy in person The deadline of

EIN3235
HW1
Number 10, 14, and 16 page 24-25, Problems 2 page 39 of the text book
10. A sample of 100 adult women was taken, and each asked how many children she had. The results
were as follows:
Children
# of women
0
27
1
22
2
30
3
12
4
7
5
2
a.
b.
c.
d.

EIN3235
HW2 due on 1/24/2017
Problems 4, 14, and 16 pages 39 41 and 4 page 60, 16 and 18 page 62
4. Following are measurements of soil concentrations (in mg/kg) of chromium (Cr) and nickel (Ni) at 20
sites in the area of Cleveland, Ohio. These data are ta

This chart isn't available in your version of Excel.
Editing this shape or saving this workbook into a different file format will permanently break
the chart.
[1 - 100]
[101 - 200]
[201 - 300]
[301 - 400]
[401 - 500]
[501 - 600]
This chart isn't available

This chart isn't available in your version of Excel.
Editing this shape or saving this workbook into a different file format will permanently break the
chart.
14
15
16
17
18
19
20
21
22
Stem
14
15
16
17
18
19
20
21
22
45 Specimens Dot Plot
0.1
0.0
0.1
0.2

Chapter 10:
Statistical Quality
Control
1
Introduction
As the marketplace for industrial goods has become
more global, manufacturers have realized that quality
and reliability of their products must be as high as
possible for them to be competitive.
It

EIN3235 Course Project Proposal
Due 1/19/17
Team Members:
1. Name
2. Name
PID
PID
Research Question:
Variable:
Population: .
Method used to collect data:
Sample size:
Number of samples that will be taken:
The sample size must be at least 5; you must ta

EIN3235 Course Project Progress Report
Due 2/16/2017
Progress Report requirement:
Use Minitab, to generate the following graphical summary of the data collected for your project.
Task 1 Enter the data for each sample in MiniTAB.
Task 2 Generate the follow

EIN3235
HW6 Solutions
Number 6, 8, 10, 12 page 253. Number 2 page 260, Number 4 page 261 number 2 page 270,
and number 8 page 271
6. The temperature recorded by a certain thermometer when placed in boiling
water (true temperature 100oC) is normally distri

EIN3235
HW7, Due 10/6/16
Hard copy must be submitted in class on Thursday
Number 4 page 289, number 6 page 300
Use MiniTab for problem 4. Include an screen shot of Probability plot.
4. Below are the durations (in minutes) of 40 time intervals between erup

EIN3235
Number 4 page 335, and Number 8 page 336
HW8 Solutions
8. Oven thermostats were tested by setting them to 350 oF and measuring the actual temperature of the
oven. In a sample of 67 thermostats, the average temperature was 348.2o F and the standard

EIN3235
HW4 Solutions
Problem 2 page 112, and 8 page 113, number 18 parts a and b page 115, number
6 page 169 number 8 page 170 of the text book.
2. Computer chips often contain surface imperfections. For a certain type of
computer chip, the probability m

EIN3235
HW5
Number 5 page 203, Number 4 page 212 and number 20 page 214. Number 6
page 227 and number 18 page 229. Number 4 page 252.
5. A penny and a nickel are tossed. Both are fair coins. Let X = 1 if the penny
comes up heads, and let X = 0 otherwise.

EIN3235
HW4
Problem 2 page 112, and 8 page 113, number 18 parts a-e page 115, number 6
page 169 number 8 page 170 of the text book.
2. Computer chips often contain surface imperfections. For a certain type of
computer chip, the probability mass function o

Chapter 9:
Factorial Experiments
1
Section 9.1: One-Factor
Experiments
In general, a factorial experiment involves several
variables.
One variable is the response variable, which is
sometimes called the outcome variable or the
dependent variable.
The o

Chapter 8:
Inference in Linear Models
1
Introduction
We discussed bivariate data in Chapter 2.
In this chapter, we learn to compute confidence
intervals and to perform hypothesis tests on the slope
and intercept of the true regression line.
We have tal

Minitab Steps Problem 1: With the following sample GPA, we are 95% that FIU student GPA is between ? and ? 3.1 3.2 3.3 3.4 Assume FIU GPA has standard deviation=0.01 Solution: It is to find two-sided Confidence Interval with known variance. Step1: use 1 s

9-1 Hypothesis Testing
9-1.1 Statistical Hypotheses Statistical hypothesis testing and confidence interval estimation of parameters are the fundamental methods used at the data analysis stage of a comparative experiment, in which the engineer is intereste

7-1 Introduction
The field of statistical inference consists of those methods used to make decisions or to draw conclusions about a population. These methods utilize the information contained in a sample from the population in drawing conclusions. Statis