In a market research study, members of a consumer test panel are asked to rate t
ID: 2928880 • Letter: I
Question
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
Can someone help me correct where I have gotten them wrong? Thanks in advance!!
Mean Ratings of Dashboard Surface Texture
Age Group Shiny Satin Pebbled Pattern Youth (under 21) 6.7 6.6 5.5 4.3 Adult (21 to 39) 5.5 5.3 6.2 5.9 Middle-Age (40 to 61) 4.5 5.1 6.7 5.5 Senior (62 and over) 3.9 4.5 6.1 4.1Fill in the missing data. (Round your SS values to 3 decimal places, F values to 2 decimal places, and other answers to 4 decimal places.)
ANOVA Table Source Rows (Age Group) Columns (Surface) Error MS 1.0550 1.0817 . 0.7422 value 0.2999 . 0.2907 df 3.165 . 3.245 6690 1.42 1.46 . 3 Total 13.100 15 (c) Choose the correct statement. The texture is significantly affected by age group and by surface type The texture is not significantly affected by age group or by surface type The texture is not significantly affected by surface tvpe, but it is affected by age group 00The texture is not significantly affected by age group, but it is affected by surface typeExplanation / Answer
you have put rows data in columns and columns data in row; rest of the output is ok:
Source of Variation SS df MS F P-value Rows 3.245 3 1.0817 1.46 0.2907 Columns 3.165 3 1.0550 1.42 0.2999 Error 6.69 9 0.7433 Total 13.1 15Related Questions
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