A major oil company is studying the relationship between the daily traffic count

Question

A major oil company is studying the relationship between the daily traffic count and the number of gallons of gasoline pumped at company stations. A sample of eight company owned stations is selected and the following information obtained: Total GallonsTraffie of Gas Pumped |(hundreds (000)-Lorean) count a. Develop a scatter diagram with the amount of gasoline pumped as the dependent variable Location West St 1 Willoubby St.180 Mallard Rd 140 Pheasant Rd.150 75 Kinzua Rd Front St. Indiana Ave. 210 100 90 80 2. b. Calculate the coefficient of determination (R) c. Interpret the meaning of the coefficient of determination Analysis of Variance SOURCE DF MS Regression 1 7,293.4 7,293.4 Error Total 8 2,400.2 300.0 9 9,693.6 d. Calculate the standard error of estimate and briefly interpret its meaning.

Explanation / Answer

answer of part(b)

from the analysi of variance table

Regression SS=RSS=7293.4

Error SS=ESS=2400.2

total SS=TSS=9693.6

answer of part c)

Coefficient of determination is the fraction of total variation (sum of squrares) explained by the model.

answer of part d)

from the anova table

answer of part(a)

difficult to load the image of the graph on this platform.please try another ways to get graph from me.

RSS 7293.4 ESS 2400.2 TSS 9693 coefficient of determination R2 R2=RSS/TSS= 7293.4/9693= 0.752439905

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