Consider the following statements on exponential smoothing forecast. 1. The exponential smoothing forecast requires two different parameters to be decided by experts. 2. The exponential smoothing forecast puts more weight on the data in the last period compared to any other period. 3. Exponential smoothing takes all available data into account to make a forecast. 4. The exponential smoothing can be used to measure trend. Which of the following is true? Statements 1 and 2 are correct. Statements 2 and 3 are correct. Statements 1,3 , and 4 are correct. Statement 1 is the only correct statement