Consider the demand for some product over the last $12$ periods. The weights of $0\mathrm{.}5,0\mathrm{.}2,0\mathrm{.}2,$ and $0\mathrm{.}1$ are assigned to the most recent, second most recent, third most recent, and fourth most recent periods, respectively. The data has been collected in the Microsoft Excel Online file below. Use the Microsoft Excel Online file below to develop the four$-$period weighted moving average forecast and answer the following questions.

Open spreadsheet

Questions

$1.$ Calculate the forecast for the periods from $5$ to $13$ using a four$-$period weighted moving average. Do not round intermediate calculations. Round your answers to the nearest whole number.

Period Forecast

$5$ fill in the blank $2$

$6$ fill in the blank $3$

$7$ fill in the blank $4$

$8$ fill in the blank $5$

$9$ fill in the blank $6$

$10$ fill in the blank $7$

$11$ fill in the blank $8$

$12$ fill in the blank $9$

$13$ fill in the blank $10$

$2.$ Choose the correct graph for the four$-$period weighted moving average forecast.

The correct graph is $.$

A$.$

B$.$

C$.$

D$.$