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.
Definitions:
Cost
The amount of money or resources expended to acquire an asset, produce a product, or deliver a service.
Omni-Channel Retail
A retail strategy that provides customers a seamless and cohesive shopping experience across various channels and devices, integrating physical and digital platforms.
Response Time
The duration it takes for a system or entity to react to a specific input or demand, significant in determining customer satisfaction and operational efficiency.
Information Goods
Products that can be delivered digitally and are primarily composed of or characterized by informational content.
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