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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 

p-value 

Between groups 

 

 

136.4803

2

68.24014

8.258752

0.001866

Within groups 

 

 

198.3064

24

8.262766

 

 

Total 

 

 

334.7867

26

 

 


Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M923463

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