ch 11 end. 9: In a market research study, members of a consumer test panel are asked to rate the visual appeal (on a 1 to 10 scale) of the texture of dashboard plastic trim in a mockup of a new fuel cell car. The manufacturer is testing four finish textures. Panelists are assigned randomly to evaluate each texture. The test results are shown below. Each cell shows the average rating by panelists who evaluated each texture. Research question: Is mean rating affected by age group and/or by surface type?

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ch 11 end. 9: In a market research study, members of a consumer test panel are asked to rate the visual appeal (on a 1 to 10 scale) of the texture of dashboard plastic trim in a mockup of a new fuel cell car. The manufacturer is testing four finish textures. Panelists are assigned randomly to evaluate each texture. The test results are shown below. Each cell shows the average rating by panelists who evaluated each texture. Research question: Is mean rating affected by age group and/or by surface type?

 

 

(b) Fill in the missing data. (Round your SS values to 3 decimal places, Fvalues to 2 decimal places, and other answers to 4 decimal
places.)
Table of Means
Mean
Std. Dev
Shiny
Satin
Pebbled
Pattern
Youth (Under 21)
Adult (21 to 39)
Middle-Age (40 to 61)
Senior (62 and over)
Total
ANOVA Table
Source
df
MS
p-value
Rows (Age Group)
Columns (Surface)
Error
Total
Transcribed Image Text:(b) Fill in the missing data. (Round your SS values to 3 decimal places, Fvalues to 2 decimal places, and other answers to 4 decimal places.) Table of Means Mean Std. Dev Shiny Satin Pebbled Pattern Youth (Under 21) Adult (21 to 39) Middle-Age (40 to 61) Senior (62 and over) Total ANOVA Table Source df MS p-value Rows (Age Group) Columns (Surface) Error Total
In a market research study, members of a consumer test panel are asked to rate the visual appeal (on a 1 to 10 scale) of the texture of
dashboard plastic trim in a mockup of a new fuel cell car. The manufacturer is testing four finish textures. Panelists are assigned
randomly to evaluate each texture. The test results are shown below. Each cell shows the average rating by panelists who evaluated
each texture. Research question: Is mean rating affected by age group and/or by surface type?
Mean Ratings of Dashboard Surface Texture
Age Group
Youth (under 21)
Adult (21 to 39)
Middle-Age (40 to 61)
Senior (62 and over)
Shiny
Satin
Pebbled
Pattern
6.9
6.6
5.2
4.9
5.9
5.7
6.2
5.5
4.7
5.8
6.7
5.0
3.6
4.0
6.4
4.7
Transcribed Image Text:In a market research study, members of a consumer test panel are asked to rate the visual appeal (on a 1 to 10 scale) of the texture of dashboard plastic trim in a mockup of a new fuel cell car. The manufacturer is testing four finish textures. Panelists are assigned randomly to evaluate each texture. The test results are shown below. Each cell shows the average rating by panelists who evaluated each texture. Research question: Is mean rating affected by age group and/or by surface type? Mean Ratings of Dashboard Surface Texture Age Group Youth (under 21) Adult (21 to 39) Middle-Age (40 to 61) Senior (62 and over) Shiny Satin Pebbled Pattern 6.9 6.6 5.2 4.9 5.9 5.7 6.2 5.5 4.7 5.8 6.7 5.0 3.6 4.0 6.4 4.7
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