Using simple moving averages and the following time series data, respond to each of the items. Period Dela mi 136 122 121 112 141 165 116 118 142 129 mom-umul-hwnia p Click here for the Excel Data File b. Compute all possible forecasts using a six-period simple moving average model. [Round your answers to 1 decimal place.) c. Compute the MAD. {Round your answer to 1 decimal place.) _:I d. What is the forecast demand for period 11? {Round your answer to 1 decimal place.) e. What is the error associated with the eleventh-period forecast? {Round your answer to 1 decimal place.)