for the chip during the last $4$ months were as$$ follows:

$$

Month

Price Per Chip

January

$$$$1\mathrm{.}85$

February

$$$$1\mathrm{.}61$

March

$$$$1\mathrm{.}64$

April

$$$$1\mathrm{.}83$

This exercise contains only parts$$ a$,$ b$,$ and c$.$

Part $2$

$$a$)$ Using a$2-$month moving$$ average, calculate the forecast for March and April $($round your responses to two decimal $$places$).$

Month

Mar

Apr

Forecast

$$$

$$

$1\mathrm{.}73$

$$$

$$

$1\mathrm{.}63$

Part $3$

$$b$)$ Using a$3-$month moving$$ average, calculate the forecast for April.

The forecast for April is $$$

$$

$1\mathrm{.}7($round your response to two decimal $$places$).$

Part $4$

$$c$)$ Calculate the mean absolute deviation based on a$2-$month average.

The mean absolute deviation based on$2-$month moving average of March through April is $$$

$$

$0\mathrm{.}148($round your response to three decimal $$places$).$

Part $5$

Calculate the mean absolute deviation based on a$3-$month average.

The mean absolute deviation based on a$3-$month moving average of April is $$$

$$

enter your response here $($round your response to three decimal $$places$).$