ISYE 3039 Methods for Quality Improvement
Spring 2013
Homework 5 solution
Due: April, 1st, 2013
Problem 1 (30 points)
Analyze the data collected in the 23 design shown below. Please calculate all main effect,
all 2-factor interaction effect, and all 3-fac
ISyE 3039 Homework #3
5.1
(a)
n = 5, x =
x
i =1
24
i
24
= 34.0, R =
R
i =1
24
i
24
= 4.708
Control Limits for x Chart UCL = x + A2 R = 34.0 + 0.577 = 36.72 4.71 CL = x = 34.0 LCL = x - A2 R = 34.0 - 0.577 = 31.28 4.71
Control Limits for R Chart
UCL = D4
ISYE 3039 Methods for Quality Improvement
Fall 2015
Homework 4
Problem 1
Problem 2
Control charts on X and S are to be maintained on the torque reading of a bearing used in
a wingflap actuator assembly. Samples of size n = 8 are to be used, and we know fr
ISYE 3039 Methods for Quality Improvement
Spring 2013
Homework 7 solution
Problem 1 (30 points)
Since the implementation of an SPC program in the foundry department in January 1990,
the engineers had made one change in the foundry operations, which appear
ISyE 3039 F13 - HW5
No need for submission
Problem 1: 6.19
Samples of n = 4 items are taken from a process at regular intervals. A normally dis
tributed quality characteristic is measured and X and S values are calculated for each sample.
After 50 subgrou
ISyE 3039 Statistical Methods for Quality Improvement
Practice Questions for Exam II (120 mins)
NOTES:
1. Two (letter-size, double-sided) formula sheets are allowed.
2. A calculator is allowed (laptop is not allowed).
3. Write your answer on this exam pap
ISYE 3039 - HW 5 Solutions
Tuesday Oct 1, 2013
Problem 1: 6.19
Samples of n = 4 items are taken from a process at regular intervals. A normally dis
tributed quality characteristic is measured and X and S values are calculated for each sample.
After 50 sub
ISyE 3039 A Homework 3 Fall 2016
* Solutions *
This homework assignment is due Wednesday 9/28 at the beginning of class. You are
encouraged to discuss homework problems with your fellow students. However, your final
answers must be your own work based on
3039
HW 1
3.41 A stock brokerage has four computers that are used for making trades on the New
York Stock Exchange. The probability that a computer fails on any single day is 0.005.
Failures occur independently. Any failed computers are repaired after the
ISYE 3039 Methods for Quality Improvement
Spring 2013
Homework 6 solution
Problem 1
In a study to isolate both gauge repeatability and gauge reproducibility, two operators use the
same gauge to measure 10 parts three times each. The data are shown here.
P
ISyE 3039 Section A
Methods for Quality Improvement
Spring 2014
Homework 2 Solution
February 2, 2014
1. The diameters of aluminum alloy rods produced on an extrusion machine are known to have a standard deviation of 0.0001 in. A random
sample of 25 rods h
ISyE 3039 Section A
Methods for Quality Improvement
Spring 2014
Homework 1 Solution
January 21, 2014
1. Patients arriving at an outpatient clinic are routinely screened for high
blood pressure. Assume that this condition occurs in 15% of the population.
(
ISyE 3039 Methods for Quality Improvement, Summer 2016
Homework 8
Due Friday July 22, at start of class
Show all work and intermediate steps of calculations.
All numbered book problems are from course text, 7th edition.
(1) The file Waiting Time.csv conta
ISyE 3039 Methods for Quality Improvement, Summer 2016
Homework 6
Due Wednesday July 6, at start of class
Show all work and intermediate steps of calculations.
All numbered book problems are from course text, 7th edition.
(1) A chart has the following par
ISyE 3039 Methods for Quality Improvement, Summer 2016
Homework 3
Show all work and intermediate steps of calculations.
All numbered book problems are from Montgomery and Runger, 7th edition.
(1) A psychologist is examining how the wording of a question c
ISyE 3039 Methods for Quality Improvement, Summer 2016
Homework 1 Solutions
(1) Suppose that an airplane engine will fail, when in flight, with probability 1-p independently
from engine to engine; suppose that the airplane will make a successful flight if
ISyE 3039 Methods for Quality Improvement, Summer 2016
Homework 7
Due Friday July 15, at start of class
Show all work and intermediate steps of calculations.
All numbered book problems are from course text, 7th edition.
(1) Delirious Dollsr are stuffed an