For a certain company, the monthly percentsges of all shipments received on time over the past 12 months are 80,82, B4, 83, 82 , B4, 85, 85, 82, BJ, a5, and s3. (a) Construct a time series plot. 2) D. What type of pottern exists in the dota? The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal pattern. Overall, the time series plot exhibits a consistent trend pattern. The last two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horiaontal pattern. The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a seasonal pattern. The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a cyelical pattern. (b) Compare a throe-month moving average forecast with the exponential smoothing forccast for a =0.1. Compute the MSE for the three-month moving forecast. (Round your answer to two decimal places.) Compute the MSE for the exponential smoothing forecast for a =0.1. (Round your answer to two decimal places.) Which provides more accurate forecasts using MSE as the measure of forecast acouracy? A 3-month moving average provides the mo1t docurate forecast using MSt. An exponential smoothing forecast with a =0.1 provides the most accurate forecast using Mse. Both forecastes provide the same level of accuracy using MSE. (c) Using the more accurate forecast, what is the forecast for the next month? (Round your answer to two decimal places.)