when comparing prices between different store names which data type compares price between different stores can you compare price between different stores how do I compare prices between different store is price comparison data nonparametric do you have to use a nonparametric model when comparing prices in different stores how to compare prices between different stores is the average price a parameter can you compare price between different stores why is product ranking important for ranking what is the best method to compare prices across multiple stores how to compare prices compare prices between different stores what model would compare prices in a store to another store what model can compare a store's price to another store when comparing price, which model to use can you use the nonparametric model of product ranking why use nonparametric model in rankings which method best estimates the difference between a store's price and store's rank? do you have to use a non-parametric model to compare prices