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Using Excel data analysis compute distribution and interpret the result.

The fuel efficiencies for a sample of 27 compact, midsize and large cars are entered into a statistical software package. Examination of variance is used to investigate if there is a difference in the mean mileage of the three cars. Describe what do you conclude? Use the .01 significance level.

Summary
Groups	count	Sum	Average	Variance
Compact	12	268.3	22.35833	9.388106
Midsize	9	172.4	19.15556	7.315278
Large	6	100.5	16.75	7.303
			Anova
Source of Variation			SS	df	MS	F	p-value
Between groups			136.4803	2	68.24014	8.258752	0.001866
Within groups			198.3064	24	8.262766
Total			334.7867	26

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