The dataset below LaptopSalesJanuary2008.csv contains data for all sales of laptops at a computer chain in London in January 2008. This is a subset of the full dataset that includes data for the entire year. You will use it to practice data mining in R.

Create side-by-side boxplots of the retail price by store, to better compare retail prices across stores. Now compare the prices in the two stores from (a). Does there seem to be a difference between their price distributions?

price<-sales$Retail.Price

store<-sales$Store.Postcode

head(sales)

boxplot(sales$Retail.Price~sales$Store.Postcode)

How do we compare just the two stores- highest and lowest average?