The price drivers pay for gasoline often varies a great deal across regions thro

Question

The price drivers pay for gasoline often varies a great deal across regions throughout the United States. The following data show the price per gallon for regular gasoline for a random (OhioGasPrices.com website, March 18, 2012) Click on the datafile logo to reference the data sample of gasoline service stations for three major brands of gasoline (Shell, BP, and Marathon) located in eleven metropolitan areas across the upper Midwest region DATA file BP 3.83 3.83 3.85 3.77 3.84 3.84 4.04 3.78 3.84 3.84 3.83 Shell Metropolitan Area Akron, Ohio Cincinnati, Ohio Cleveland, Ohio Columbus, Ohio Ft. Wayne, Indiana Indianapolis, Indiana Lansing, Michigan Lexington, Kentucky Louisville, Kentucky Muncie, Indiana Toledo, Ohio 3.77 3.72 3.87 3.76 3.83 3.85 3.93 3.79 3.78 3.81 3.69 Marathorn 3.78 3.87 3.89 3.79 3.87 3.87 3.99 3.79 3.79 3.86 3.86 Use ? = .05 to test for any significant difference in the mean price of gasoline for the three brands. Round SS to 6 decimals, MS to 6 decimals, F to 2 decimals and p to 3 decimals, if necessary. If your answer is zero, enter "O". Source Metropolitan Area Brand Error Total DF MS The p-value is-Select your answer v What is your conclusion? -Select your answer

Explanation / Answer

the p value is less than 0.05

conclude that tere is a signifcant difference in the mean price per gallon

Source of Variation df SS MS F P-value area 10 0.108024 0.010802 8.39 0.000 brand 2 0.016927 0.008464 6.58 0.006 Error 20 0.025739 0.001287 Total 32 0.150691

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