Princess cruises recently offered a 16-day voyage from beijing to bangkok during the time period from may to august. the announced price, excluding airfare, for a room with an ocean view or a balcony was listed as $3,475. cruise fares usually are quite variable due to discounting by the cruise line and travel agents. a sample of 20 passengers who purchased this cruise paid the following amounts (in dollars). determine the sampling error for this sample. 3,559 3,005 3,389 3,505 3,605 3,545 3,529 3,709 3,229 3,419 3,439 3,375 3,349 3,559 3,419 3,569 3,559 3,575 3,449 3,119