Lenovo uses the zx-81 chip in some of its laptop computers. the prices for the chip during the last 4 months were as follows: month price per chip january $1.80 february $1.67 march $1.70 april $1.85 this exercise contains only parts a, b, and c. 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 $ 1.74 $ 1.69 b) using a 3-month moving average, calculate the forecast for april. the forecast for april is $ 1.72 (round your response to two decimal places). c) calculate the mean absolute deviation based on a 2-month average.