Cardiac Science, a U$.$S$.$ manufacturer of defibrillators, heart monitoring devices, and other medical$-$related devices, sells $85$ percent of its products outside the United States. It sells basically the same product to hospitals in London $($UK$),$ Tokyo $($Japan$),$ Pretoria South Africa$),$ or Sydney $($Australia$).$ It uses the same marketing mix in all of its markets.Cardiac Science: