Answer:
a) Demand for next week (2-weeks-moving-average) = 11 dozens
a) Demand for next week (3-weeks-moving-average) = 9 dozens
Explanation:
The moving average used for forecast takes past values and average them to predict future values fo the variable.
Is calculated by taking the arithmetic mean of a given set of values. In this case, we will forecast using 2 and 3 weeks.
In the case of 2 weeks moving average, we take the last two weekly sales and average them:

For the case of 3 weeks moving average, we take the last three weekly sales and average them:
