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.