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