Period - Demand 1 - 947 2 - 946 3 - 949 4 - 1080 5 - 1031 6 - 1088 7 - 1139 8 - 1121 9 - 1143 10 - 1156 11 - 1146 12 - 1161 13 - 1175 14 - 1092 Questions:- 1.) What is the coefficient of variation of demand? ( give your answer with atleast four decimals) 2.) What is the forecast for demand in time period 15 using a Naive model? (Give your answer with one decimal) 3.) What is the forecast for demand in time period 15 using a Cumulative model? (Give your answer with one decimal) 4.) What is the forecast for demand in time period 15 using a 2 Period Moving Average model? (Give your answer with one decimal) 5.) What is the forecast for demand in time period 15 using a 4 Period Moving Average model? (Give your answer with one decimal) Create next period forecasts for the data for time periods 1 through 14 using the Naive, Cumulative, 2 Period Moving Average and 4 Period Moving Average models. 7.) What is the MAPE for the next period Naive model? (Give your answer not as percentage but as decimal, with atleast four decimals. So for example, for a MAPE of 12.34%, enter 0.1234.) 8.) What is the MAPE for the next period Cumulative model? (Give your answer not as percentage but as decimal, with atleast four decimals. So for example, for a MAPE of 12.34%, enter 0.1234.) 9.) What is the MAPE for the next period 2 Period Moving Average model? (Give your answer not as percentage but as decimal, with atleast four decimals. So for example, for a MAPE of 12.34%, enter 0.1234.) 10.) What is the MAPE for the next period 4 Period Moving Average model? (Give your answer not as percentage but as decimal, with atleast four decimals. So for example, for a MAPE of 12.34%, enter 0.1234.)