IE 356
Homework #1
1. Two methods of producing gasoline from crude oil are being investigated. The
yields of both processes are assumed to be normally distrbuted. The followig
yield data have been obtaed from the pilot plant.
Process
Yield (%)
1
24.2 26.6
IE 356 HW# 5 1. Use the data in problem 10-6 (on pg. 414) of the text to answer the following questions. a. b. c. d. e. f. g. Fit a multiple linear regression model of the form y = 0 + 1x1 +2x2 + to the data. Test the model in part (a.) For significance o
IE 356 Homework #1 1. Two methods of producing gasoline from crude oil are being investigated. The yields of both processes are assumed to be normally distributed. The following yield data have been obtained from the pilot plant. Process 1 2 a. b. 24.2 26
Solutions from Montgomery, D. C. (2004) Design and Analysis of Experiments, Wiley, NY
HW#3 Solutions
3-12 A manufacturer of television sets is interested in the effect of tube conductivity of four different types of coating for color picture tubes. The fo
Solutions from Montgomery, D. C. (2004) Design and Analysis of Experiments, Wiley, NY
Chapter 5 Introduction to Factorial Designs Solutions
5-1 The yield of a chemical process is being studied. The two most important variables are thought to be the pressu
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Solutions from Montgomery, D. C. (2004) Design and Analysis of Experiments, Wiley, NY
Chapter 4
Randomized Blocks, Latin Squares, and Related Designs
Solutions
4-2 Three different washing solutions are being compared to study their effectiveness in retard
IE 356 HW #4 Chapter 10 1. Use the data in problem 10-1 (pg. 414 of the text) to answer the following questions: a. b. c. d. e. f. 2. Fit a linear regression model relating the strength (y) to percent hardwood (x). Test the model in part (a) for significa
Solutions from Montgomery, D. C. (2004) Design and Analysis of Experiments, Wiley, NY
Chapter 4
Randomized Blocks, Latin Squares, and Related Designs
Solutions
4-19 An industrial engineer is investigating the effect of four assembly methods (A, B, C, D) o
Solutions from Montgomery, D. C. (2004) Design and Analysis of Experiments, Wiley, NY
Chapter 6
k
The 2 Factorial Design
Solutions
6-5 A router is used to cut locating notches on a printed circuit board. The vibration level at the surface
of the board as
Solutions from Montgomery, D. C. (2004) Design and Analysis of Experiments, Wiley, NY
Chapter 2
Simple Comparative Experiments
Solutions
2-2 The viscosity of a liquid detergent is supposed to average 800 centistokes at 25C. A random sample of 16 batches o
Solutions from Montgomery, D. C. (2004) Design and Analysis of Experiments, Wiley, NY
HW#2 Solutions
3-1 The tensile strength of portland cement is being studied. Four different mixing techniques can be
used economically. The following data have been coll