In the Kruskal-Wallis test for the following data, what is the sum of the ranks for Sample 3? 
Definitions:
Retail Price
The price at which goods are sold to the public, typically higher than the wholesale price.
Mark-up
Increment on the buying price of products targeted to offset operational costs and profits.
Selling Price
The price at which a product or service is sold to the consumer.
Mercola
A brand and website known for its health-based products and controversial wellness information.
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