Homework 1.docx - Ricky L Fraley MSETM



IET 421/ IET 621 (Spring 2015)

R Fraley Homework 1

Total Points: 10

Due date: 01/26/2014, 10:00 PM EST

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? Tackiness How would you measure the response? Which method produces the least tacky rice

b) List all of the potential sources of variability that could impact the response.

Steamed vs Boiling, Long grain vs Short grain, kettle size, white vs brown vs wild, microwave vs stovetop, type of water, cook time

c) Complete the first three steps of the guidelines for designing experiments in Section 1.4 of the book.

1. Recognition of and statement of the problem

Rice is sometimes tacky when cooked.

2. Selection of response variables

Method that produces rice with least amount of water content

3. Choices of factors level and range

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2. (5 points) Suppose that you want to compare the growth of flowers with different conditions of sunlight, water, fertilizer, and soil conditions. Complete steps 1-3 of the guidelines for designing experiments in Section 1.4 of the book.

1. Recognition of and statement of the problem

Soil and light conditions develop flowers differently

2. Selection of response variables

Which combination of sunlight, water, fertilizer, and soil conditions produces the most vibrant flowers.

3. Choices of factors level and range

[pic]

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