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A clothing store wants to investigate customer preferences between four different types of clothes designs. Twenty customers were selected as the experimental units. Each customer was given one of four designs and was requested to give scores between 0 (dislike extremely) to 10 (like extremely). Five customers were randomly assigned to each of the four designs. The results are in the table below:

A clothing store wants to investigate customer preferences between four different types of clothes designs. Twenty customers were selected as the experimental units. Each customer was given one of four designs and was requested to give scores between 0 (dislike extremely) to 10 (like extremely). Five customers were randomly assigned to each of the four designs. The results are in the table below:

MATLAB: An Introduction with Applications
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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A clothing store wants to investigate customer preferences between four different types of clothes designs. Twenty customers were selected as the experimental units. Each customer was given one of four designs and was requested to give scores between 0 (dislike extremely) to 10 (like extremely). Five customers were randomly assigned to each of the four designs. The results are in the table below: Customer Design 1 2 3 4 A 8 10 7 7 5 4 7 5 C 10 7 9 6 8 D 9 7 7 5 6 a) Identify the appropriate model and its assumptions. b) Assume that all assumptions to perform ANOVA are satisfied. Test whether the four clothes designs have different effect on customer scores. Use a = 0.05.
Transcribed Image Text:A clothing store wants to investigate customer preferences between four different types of clothes designs. Twenty customers were selected as the experimental units. Each customer was given one of four designs and was requested to give scores between 0 (dislike extremely) to 10 (like extremely). Five customers were randomly assigned to each of the four designs. The results are in the table below: Customer Design 1 2 3 4 A 8 10 7 7 5 4 7 5 C 10 7 9 6 8 D 9 7 7 5 6 a) Identify the appropriate model and its assumptions. b) Assume that all assumptions to perform ANOVA are satisfied. Test whether the four clothes designs have different effect on customer scores. Use a = 0.05.
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