Difference in wear characteristics for the two brands

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A consumer protection magazine was interested in comparing tires purchased from two different companies that each claimed that tires would last 400000 miles. A random sample of 10 tires of each brand was obtained and tested under simulated road conditions. The number of miles until the tread thickness reached a specified depth was recorded for all tires.

The data are given next (in 1000 miles).

BRAND 1 |38.9 |39.7 |42.3 |39.5 |39.6 |35.6 |36.0 |39.2 |37.6 |39.5

BRAND 2 |44.6 |46.9 |48.7 |41.5 |37.5 |33.1 |43.4 |36.5 |32.5 |42.0

Does there appear to be a difference in wear characteristics for the two brands? Justify your statement with appropriate tests of hypothesis.

Reference no: EM132527706

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