$1.$ What is the forecast for week $101$ using last period demand?

$2.$ What is the forecast for week $101$ using simple average?

$3.$ What is the forecast for week $101$ using $5-$week moving average?

$4.$ What is the forecast for week $101$ using linear regression?

$5.$ Which method do you think is best in this instance and why? $($I leave this open to you how you approach this answer. You can, for example, calculate and compare forecast accuracy, graph the demand and interpret the pattern, or simply provide a compelling arguement for one method over the others.$)$