Homework-3
Total Points: 10
Due Date: September 16, 2015, 10:00 PM EST
1.
(5 points) John opens a savings account by depositing $5000. The account pays 2%
simple interest. After 3 years, John makes another deposit, this time for $6000. What will be
the am

Harold Chapman
IET 421/ IET 621
1/24/16
HW 1
1. (5 points) Suppose that you want to investigate the factors that potentially affect cooking rice.
(a) What would you use as a response variable in this experiment? How would you measure the
response?
For a r

Accident Causation
Harold Chapman
IET 422
The Bhopal disaster was a tragic gas leak that devastated India in the early 80s. The gas leak
exposed over 500,000 people to methyl isocyanate gas and other chemicals in the Bhopal,
Madhya area. There an estimate

IET 421/621 (Spring 2016)
Exam-2
Harold Chapman
Total Points: 20
1. (5 points) Three different washing solutions are being compared to study their effectiveness
in retarding bacteria growth in five-gallon milk containers. The analysis is done in a laborat

Harold Chapman
IET 421/621 (Spring 2016)
Exam-1
Due date: 02/27/2016
1.(5 points)Select an experiment of your choice. Complete following steps of the guidelines for
designing experiments given in Section 1.4 of the book:
(a) Recognition of and statement o

IET 421/ IET 621 (Spring 2016)
Homework 2
1.
(5 points) Suppose that we are testing H0: = 0 versus H1: 0. Calculate the P-value
for the following observed values of the test statistic:
(a)
Z0 = 2.25 P=2(1-(z) P= 0.02444
(b)
Z0 = 1.55
(c)
Z0 = 2.10 P=2(1-(

Homework 6
Harold Chapman
Maximum points: 10
1.(5 points) The following output was obtained from a computer program that performed a
two-factor ANOVA on a factorial experiment.
(a) Fill in the blanks in the ANOVA table. You can use bounds on the P-values.

IET 421/621 (Spring 2016)
Harold Chapman
Homework 8
Total Points: 10
1.
(6 points) An engineer is interested in the effects of cutting speed (A), tool geometry (B), and
cutting angle on the life (in hours) of a machine tool. Two levels of each factor are

Homework-3
Total Points: 10
Due date: September 14, 2016
1.
(5 points) John opens a savings account by depositing $5000. The account pays 2% simple
interest. After 3 years, John makes another deposit, this time for $6000. What will be the
amount in the ac

Homework-4
Total Points: 10
Due date: September 22, 2016
1.
(5 points) John is buying a new truck. The trucks price is $30,000. The sales tax is 7% of
the trucks price and the title, license, and registration fee is $550 to be paid in cash. The
dealer off

Homework-2
Total Points: 10
Due date: September 06, 2016
1.
(5 points) The following data concern a new product to be launched by ABC Inc. Estimate
the selling price per unit.
Labor
= 5 hours at $15/ hour
Factory overhead = 150% of labor
Material costs
=

Homework 6
Maximum points: 10
1.(5 points) The following output was obtained from a computer program that performed a
two-factor ANOVA on a factorial experiment.
(a) Fill in the blanks in the ANOVA table. You can use bounds on the P-values.
SS, A = 0.0002

Harold Chapman
IET 310
12/1/2015
Disney Investment Thesis
Disney (DIS) is a Wall Street rarity: a company with a growth story that spans generations. Disney has had
its fair share of ups and downs throughout its time and it has recently been on an upward

Homework 3
Total Points: 10
Due date: June 17, 2016
1.
(5 points) Find the present worth of the following cash flow diagram if i = 8%.
P=350+400(P/A,8%,5)+50(P/G,8%,5)
+[550 (P/A, 8%, 5)-50(P/G, 8%, 5)] * (P/F, 8%, 5)
P= [350+400 * (3.993)+50(7.372)] = 33

Homework 6
Total Points: 10
Due date: October 22, 2015, 10:00 PM EST
1.
(5 points) A company purchased some equipment at a very favorable price of $35,000. The
equipment resulted in an annual net saving of $2000 per year during the 8 years it was used.
At

Homework-1
Total Points: 10
Due date: August 28, 2015, 10:00 PM EST
1. (5 points) Some of the following problems would be suitable for solution by engineering
economic analysis. Which ones are they?
1. Would it be better to buy a car with a diesel engine

Homework: 2
Total Points: 10
Due date: September 08, 2015, 10:00 PM EST
1.
(5 points) The following data concern a new product to be launched by ABC Inc.
Estimate the selling price per unit.
Labor
= 5 hours at $12/ hour
Factory overhead
Material costs
Pac

Final Exam
Total Points: 20
Due date: December 07, 2015, 10:00 PM EST
1. (5 points) Find the present worth of the following cash flow diagram if i = 8%.
SOLUTION:
Year
Cash Flow
Df @ 8%
PV
0
1
0
1
0.9259
0
2
0.8573
0
3
0.7938
0
4
50
0.735
36.75
5
120
0.68

Homework 7
Total Points: 10
Due date: October 30, 2015, 10:00 PM EST
1.
(5 points) Does the following project have a positive or negative rate of return? Show how
this is known to be true.
Investment Cost
$3,500
Net Benefits
$275 in Year 1, increasing by

Homework 8
Total Points: 10
Due date: November 09, 2015, 10:00 PM EST
1.
(5 points) Horizon Wireless must rebuild a cell tower recently destroyed by a tornado. If
made of normal steel, the tower will cost $30,000 to construct and should last 18 years.
Mai

Homework 9
Total Points: 10
Due date: November 19, 2015, 10:00 PM EST
1.
(5 points) The construction time for a bridge depends on the weather. The project is expected
to take 250 days if the weather is dry and hot. If the weather is damp and cool, the pro

Midterm Exam (Fall, 2015)
Total Points: 20
Due date: October 05, 2015, 10:00 PM EST
1.
(5 points) If you rent a car, you can (1) return it with a full gas tank, (2) return it without
filling it and pay $3.50/gallon, or (3) accept a fixed price of $35 for

Homework 4
Total Points: 10
Due date: June 21, 2016, 10:00 PM EST
1.
(5 points) An investment of $5000 in an Infotech common stock proved to be very profitable.
At the end of 3 years the stock was sold for $30,000. What was the rate of return on
investmen

Homework-2
Total Points: 10
Due date: June 14, 2016, 10:00 PM EST
1.
(5 points) 10 years ago, John opened a savings account with the Citizens Bank by depositing
$10,000. The account pays 5% simple interest. 5 years after his first deposit, he made another

Homework-1
Total Points: 10
Due date: August 26, 2016
1. (5 points) Some of the following problems would be suitable for solution by engineering
economic analysis. Which ones are they?
a. Would it be better to buy a car with a diesel engine or gasoline en