Hw Answer Operation Management Heizer Ch 4
4. 9 [pic] (c)? MAD (two-month moving average) = . 075 MAD (three-month moving average) = . 088 |Table for Problem 4. (a, b, c) | | | | |Forecast | ||Error| | | | |Two-Month |Three-Month |Two-Month |Three-Month | | |Price per |Moving |Moving |Moving |Moving | |Month |Chip |Average |Average |Average |Average | |January |$1. 0 | | | | | |February |? 1. 67 | | | | | |March |? 1. 70 |1. 735 | |. 035 | | |April |? 1. 85 |1. 685 |1. 723 |. 165 |. 127 | |May |? 1. 90 |1. 775 |1. 740 |. 125 |. 160 | |June |? 1. 87 |1. 75 |1. 817 |. 005 |. 053 | |July |? 1. 80 |1. 885 |1. 873 |. 085 |. 073 | |August |? 1. 83 |1. 835 |1. 857 |. 005 |. 027 | |September |? 1. 70 |1. 815 |1. 833 |. 115 |. 133 | |October |? 1. 65 |1. 765 |1. 777 |. 115 |. 127 | |November |? 1. 70 |1. 675 |1. 27 |. 025 |. 027 | |December |? 1. 75 |1. 675 |1. 683 |. 075 |. 067 | | | | |Totals |. 750| |. 793| | | | | | | | | | | |4. 9 |(d)? Table for Problem 4. 9(d): | | | | |( = . 1 | | |( = . 3 | | |( = . | |Month |Price per Chip |Forecast ||Error| |Forecast ||Error| |Forecast ||Error| | |January |$1. 80 |$1. 80 |$. 00 |$1. 80 |$.
n Management Heizer Ch 4