# Demand for a particular type of battery fluctuates

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72) Demand for a particular type of battery fluctuates from one week to the next. A study of the last sixweeks provides the following demands (in dozens): 4, 5, 3, 2, 8, 10 (last week).(a) Forecast demand for the next week using a two-week moving average.(b) Forecast demand for the next week using a three-week moving average.Answer:Diff: 1
Topic:FORECASTING MODELSRANDOM VARIATIONS ONLYAACSB:Analytic Skills73) Daily high temperatures in the city of Houston for the last week have been: 93, 94, 93, 95, 92, 86, 98(yesterday).(a) Forecast the high temperature today using a three-day moving average.(b) Forecast the high temperature today using a two-day moving average.(c) Calculate the mean absolute deviation based on a two-day moving average, covering all days in whichyou can have a forecast and an actual temperature.Answer:
Diff: 2Topic:VARIOUSAACSB:Analytic Skills
1674) For the data below:MonthAutomobileBattery SalesMonthAutomobileBattery SalesJanuary20JulyFebruary21AugustMarch15SeptemberApril14OctoberMay13NovemberJune16December(a) Develop a scatter diagram.(b) Develop a three-month moving average.(c) Compute MAD.171820202123
17Topic:VARIOUSAACSB:Analytic Skills
1875) For the data below:MonthAutomobileTire SalesMonthAutomobileTire SalesJanuary80JulyFebruary84AugustMarch60SeptemberApril56OctoberMay52NovemberJune64December(a) Develop a scatter diagram.(b) Compute a three-month moving average.(c) Compute the MSE.6810080808492
19Topic:VARIOUSAACSB:Analytic Skills
2076) For the data below:YearAutomobile SalesYearAutomobile Sales1990116199719911051998199229199919935920001994108200119959420021996272003(a) Develop a scatter diagram.(b) Develop a six-year moving average forecast.(c) Find MAPE.1193434485365111
21Topic:VARIOUSAACSB:Analytic Skills
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