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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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bennick bennick
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A year ago

Three different brands of tires were compared for wear characteristics. From each brand of tire, ten tires were randomly selected and subjected to standard wear-testing procedures. The average mileage obtained for each brand of tire and sample variances (both in 1,000 miles) are shown below.

 

 

Brand A

Brand B

Brand C

Average Mileage

37

38

33

Sample Variance

3

4

2


At 95% confidence, test to see if there is a significant difference in the average mileage of the three brands.

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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IgnesiasIgnesias
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A year ago
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bennick Author
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A year ago
You make an excellent tutor!
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Correct Slight Smile TY
Mcb
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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