which of the following statements is false? group of answer choices because forecasting exchange rates is subject to considerable error, managers of multinational corporations should complement their forecast with one from another source. the ability to forecast currency values may vary with the currency of concern. managers of different functional areas at a multinational corporation should use its proprietary model to forecast exchange rate movements so that the extreme forecasts cancel each other out and the average forecast represents the most likely outcome. managers should be skeptical of foreign projects that are feasible only if one particular model is used to forecast exchange rate