ISE 391 Assignment 3
1. Page 560 problem 6
Cardiologists us the short range scaling exponent, which measures the randomness of
heart rate patterns, as a tool to assess risk of a heart attack. The article compared the
short range values to the long values
ISE 391 Assignment 2
1. Page 445 problem 2
Data was collected of the dissolved times of the different shapes of
ibuprofen. There were 6 samples of disk and 8 of the ovals.
Ho:x-y=0, H1:x-y0
Y
X
(uxuy )
t =
X =255.8, sx=8.216325, nx=6
Y = 270.7375, sy=11
ISE 391 Assignment 5
Problem 12 page 685
1. Four different types of solar energy were tested. Each was tested at five randomly
chosen times, and the power (in watts) was measured. The results were as follows.
The A,B,C,D is the collector while the numbers
ISE 391 Assignment 6
1. Problem 8 page 720
a. Estimate all the main effects and interactions.
Main effects of glass content
5
10
15
Interaction
Size
Coarse
Fine
Glass Content
5
6.1867
-6.1867
-11.4867
-9.9267
21.4133
10
5.9267
-5.9267
15
-12.1133
12.1133
1. Problem 20 page 655-656
a. Fit the model y= B0+B1x1+ B2x2+E
b. Drop the variable whose coefficient has the larger p value and refit.
c. Plot the residuals versus the fitted values from the model in part b. are there any indications that
the model is in
ISE 391
Probability and Engineering Statistics II
Assignment 5 Solution
29 February 2016
1. Engineering Data with Log Transform (Problem 14, page 542)
An engineer has data to fit in order to make a prediction at x = 4.5. The data exhibits
curvature with t
ISE 391
Probability and Engineering Statistics II
Assignment 4 Hint
12 February 2016
Several students have asked about the last portion of Problem 10 page 541 so that they can finish
the assignment over the weekend. Since the missing material is brief I p
ISE 391
Probability and Engineering Statistics II
Assignment 8 Solution
21 April 2016
1. Brick Strength, Problem 7, page 720
Data was provided to examine the structural properties of brick when glass particles were added
to clay. The particles added were
ISE 391
Probability and Engineering Statistics II
Assignment 1 Solution
18 January 2016
1. Confirming Box Plot Values for Exponential Sample
The purpose of this problem was to practice obtaining sample descriptive statistics and to
compare to the box plot
ISE 391
Probability and Engineering Statistics II
Assignment 6 Solution
8 March 2016
1. Lake Ice - Minnesota Data: Problem 18, page 612
Data has been collected on 13 Minnesota Lakes measuring the maximum ice thickness
(y) in mm, average number of days per
ISE 391
Probability and Engineering Statistics II
Assignment 7 Solution
5 April 2016
1. Rock Blasting II Problem 12, page 643
We again see the rock blasting data that relates peak particle velocity (PPV) in mm/s to
characteristics of explosive (amount of
ISE 391
Probability and Engineering Statistics II
Assignment 8 Solution
14 April 2016
1. Nail Withdrawal Strength Data: Problem 18, page 686
We again encounter an experiment testing the withdrawal strength of various nail
threading types. Notice that the
ISE 391
Probability and Engineering Statistics II
Assignment 3 Solution
2 February 2016
1. Gasoline Revenue (Problem 10, page 125)
Revenue at a gas station is dependent upon the volume of gasoline sold in the various grades of
regular, midgrade, and premi
ISE 391
Probability and Engineering Statistics II
Assignment 4 Solution
18 February 2016
1. Marine Corrosion Correlation Analysis: Problem 10, page 541
Steel submerged in seawater is subject to corrosion. An experiment was conducted with
steel plates subm
ISE 391
Probability and Engineering Statistics II
Solution to Assignment 2
26 January 2016
1. CI on Difference of Permeability Coefficients (12, p. 369)
The permeability coefficient [10-6 cm3 (STP)/cmsMpa) of CO2] is measured at two
temperatures (60C and
Homework 1
Due Aug 24 by 12:45pm
Points 10
Submitting a text entry box or a file upload
File Types xls, xlsx, pdf, txt, rtf, doc, and docx
ISE 321 Engineering Economics Homework 1 Due 24 August
Ten problems 1 point each
1. Practice cash flows. Nick Saban
Answering Question 1 Graphically
In column A, I laid out the Ticket axis, from zero to 7. With only $7, and prices no less that $1, 0 to 7 seems an adequate do
In column B, I used the value formula given in the question to compute the value of tickets fro
Tax Rate:
1 a)
35%
Marcos lunch truck sells 250 chicken kabob lunches per day, on average. The price is $4. Marco buys
$1.00 in food supplies per lunch. He operates the lunch truck for 190 days per year. Labor costs are
$25,000 per year and truck expenses
Question 1: Imelda should join the shoe club because the total NPV is greater than zero, which would be the NPV of not jo
Contract Years
Initial Membership
Fee (Year 1-6)
Fee (Year 7-12)
Shoe Happiness
Discount Rate
year
0
1
2
3
4
5
6
7
8
9
10
11
12
disco
Effective Interest Rate formula is:
APR =
9%
APR =
18%
Rate = ( [1 + APR / periods per year] ^ periods per year) - 1
compounded monthly
periods per year
12
compounded daily
periods per year
365
Effective
Interest
Rate
Effective
Interest
Rate
9.38%
19.72%
Question 1
The supply curve is constant at $6 per pound.
The market clearing point is where the demand curve intersects the supply curve.
6 = 25 x Quantity - 3
There fore, Quantity =
1.61
Check: Price =
6
Market Clearing Point = (1.61,6.00)
Question 2
6 =
Using differential calculus to solve Homework 10 Question 1:
We will try 3 different shapes: sphere, cylinder, and oblong.
Sphere
A sphere can be characterized just by a radius, r. If r is measured in feet, the volume is
the surface area is
Psphere =$ 3
4