Answered: The effects of detergent brand name…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Transcribed Image Text:The effects of detergent brand name (factor A in columns) and the temperature of the water (factor B in rows) on the brightness of washed fabrics are being studied. Four brand names and two temperature levels are used; six observations for each combination are examined. The following ANOVA table is produced. ANOVA Source of Variation SS df MS F p-value Sample 86 1 86 80.17 4.23005E-11 126.70 42.23 39.37 2.40 Columns 3 5.16557E-12 Interaction 7.73 3 2.58 0.082 Within 42.91 40 1.07 Total 263.34 47 a. Can you conclude that there is interaction between the detergent brand name and the temperature of the water at the 5% significance level? O Yes Picture since the p-value associated with interaction is less than significance level. O NoPicture since the p-value associated with interaction is less than significance level. O Yes Picture since the p-value associated with interaction is greater than significance level. O NOPicture since the p-value associated with interaction is greater than significance level. b-1. Are you able to conduct tests based on the main effects? O Yes O No

Transcribed Image Text:b-2. If yes, conduct these tests at the 5% significance level. (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.) O Differences exist in the average brightness of fabrics depending on the temperature of the water. O Differences do not exist in the average brightness of fabrics depending on the detergent brand name. O Differences exist in the average brightness of fabrics depending on the detergent brand name. O Differences do not exist in the average brightness of fabrics depending on the temperature of the water.

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