Question: 1 pt 6 of 15 (4 complete) This Quiz: 15 pts possible ha xperiment was

Question

Question: 1 pt 6 of 15 (4 complete) This Quiz: 15 pts possible ha xperiment was performed to look at the reflectivity of different paints used on roads. Four paints were used (call them Paint 1, Paint 2, Paint 3, and Paint 4) nty-four sections of roads with similar travel patterns and weather patterns were used. Each type of paint was randomly assigned to one of the 24 sections of road hat each paint type was used on 6 diflerent road sections. The percent of reflectivity after 6 months was determined and recorded. What is the value of the pooled ance (3) s 1? Click the icon to view part of the Analysis of Variance table oose the correct answer below Part of the Analysis of tariance Table A. 389 B. 7.94 C. 1.273 D. 6237 E. 778 DF SS MSF Source Paint Error Total 7.43 0.002 1645.3 s-6237 R-Sq=52.71% Print Done 12.46 Click to select your answer

Explanation / Answer

R-squared= SSR/SST=> SSR = 0.5271*1645.3=867.23763

DFR= K-1=3

DFE= N-K =20

SSE=SST-SSR =778.06237

MSE= SSE/DFE =38.9

MSR= SSR/DFR =289.07921

Standard pooled variance= 38.9

SS DF MS F P Paint 867.23763 3 289.07921 7.43 0.02 Error 778.06237 20 38.90702692 Total 1645.3 23

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