Section 9.2 3 . ) All Fresh Seafood is a wholesale fish company based on the east coast of the U.S Catalina Offshore Products is a wholesale fish company based on the west coast of the U.S . Table # 9 2. 5 contains prices from both companies for specific fish types ( " Seafood online , " 2013 ) (" Buy sushi grade , " 2013 ) . Do the data provide enough evidence to show that a west coast fish wholesaler is more expensive than an east coast wholesaler ? Test at the 5% level Table # 9 2 . 5 : Wholesale Prices of Fish in Dollars Fish All Fresh Seafood