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Chapter 4: Q. 52 (page 263)

A maker of fabric for clothing is setting up a new line to 鈥渇inish鈥� the raw fabric. The line will use either metal rollers or natural-bristle rollers to raise the surface of the fabric; a dyeing-cycle time of either 30or40minutes; and a temperature of either 150掳Cor175掳C. Three specimens of fabric will be subjected to each treatment and scored for quality.

a. List the factors in this experiment and state how many levels each factor has.

b. If the researchers used every possible combination to form the treatments, how many

treatments were included in the experiment?

c. List two of the treatments.

Short Answer

Expert verified

a. The factors in this experiment are Roller type, dyeing-cycle time, temperature and quality of fabric

b. The treatments were included in the experiment are three

c. Two of the treatments are Any combination of metal or natural-bristle roller, and30/40dyein

Step by step solution

01

Part (a) Step 1: Given information

We need to find that List the factors in this experiment and state how many levels each factor has.

02

 Part (a) Step 2: Explanation

The elements on this test are -

The reaction variable is the focal point of a query in a examine or test. An explanatory variable is one which explains adjustments in that variable.

Explanatory variables is Roller type, dyeing cycle time and temperature

Response variables= Quality of the fabric

03

Part (b) Step 1: Given information

We need to find that the researchers used every possible combination to form the treatments, how many treatments were included in the experiment

04

 Part (b) Step 2: Explanation

There are total of three treatments , that are -

Any combination of metal or natural-bristle roller,30/40dyein and 150/175 temperature

05

Part (c) Step 1: Given information

We need to find that two of the treatments .

06

Part (c) Step 2: Explanation

Here two of treatment are :

First one is Any combination of metal or natural-bristle roller,

And second one is30/40 dyein .

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