M $73$ Given the following data: Time left $1$:$59$:$08$ Period Number of Complaints of $42245339447541$ Prepare a forecast for period $6$ using each of these approaches $.$ Round your answers to one decimal place. a$)$ A three$-$period moving average b $)$ Exponential smoothing with a smoothing constant $($ alpha $)$ of $0\mathrm{.}30$ and a forecast for period $5$ of $43$ For parts c and d $,$ suppose the actual value for period $6$ is $45.$ What are the forecasts for period $7?)$ A three$-$ period moving average d $)$ a weighted average using weights of $0\mathrm{.}50($ most recent $),0\mathrm{.}30,$ and $0\mathrm{.}20$ e $)$ How would you determine which forecast method is best $?$ OCollaborative Planning OThe Delphi Method OLinear regression analysis Mean absolute deviation