(Solved): Corporate triple-A bond interest rates for 12 consecutive months follow. (a) Construct a time serie ...

Corporate triple-A bond interest rates for 12 consecutive months follow. (a) Construct a time series plot. What type of pattern exists in the data? The data appear to follow a trend pattern. The data appear to follow a seasonal pattern. The data appear to follow a cyclical pattern. The data appear to follow a horizontal pattern. (b) Develop three-month and four-month moving averages for this time series. (Round your answers to two decimal places.) Does the three-month or four-month moving average provide more accurate forecasts based on MSE? Explain. The four-month moving average provides more accurate forecasts, because its MSE is larger than that of the three-month moving average. The three-month moving average provides more accurate forecasts, because its MSE is smaller than that of the four-month moving average. The four-month moving average provides more accurate forecasts, because its MSE is smaller than that of the three-month moving average. The three-month moving average provides more accurate forecasts, because its MSE is larger than that of the four-month moving average. (c) Using the more accurate approach, what is the moving average forecast for the next month? (Round your answer to two decimal places.)