Given the following data on the number of pints of ice cream sold at a local ice cream store for a 10-period time frame: Period Demand 2 MA Forecast Error square 2 MA= (De- Forecast)2 1 200 2 245 3 190 (200+245)/2=222.5 4 270 (245+190)/2=217.5 (270-217.5)2=2756.25 5 280 (190+270)/2=230 (280-230)2=2500 6 300 (270+280)/2=275 (300-275)2=625 7 320 (280+300)/2=290 (320-290)2=900 8 340 (300+320)/2=310 (340-310)2=900 9 320 (320+340)/2=330 (320-330)2=100 10 280 (340+320)/2=330 (280-330)2=2500 Use a 3-period moving average to forecast demand for period 11 Group of answer choices 326.7 313.3 246.7 300.0

Given the following data on the number of pints of ice cream sold at a local ice cream store for a 10-period time frame: Period Demand 2 MA Forecast Error square 2 MA= (De- Forecast)2 1 200 2 245 3 190 (200+245)/2=222.5 4 270 (245+190)/2=217.5 (270-217.5)2=2756.25 5 280 (190+270)/2=230 (280-230)2=2500 6 300 (270+280)/2=275 (300-275)2=625 7 320 (280+300)/2=290 (320-290)2=900 8 340 (300+320)/2=310 (340-310)2=900 9 320 (320+340)/2=330 (320-330)2=100 10 280 (340+320)/2=330 (280-330)2=2500 Use a 3-period moving average to forecast demand for period 11 Group of answer choices 326.7 313.3 246.7 300.0

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter7: Distance And Approximation

Section7.3: Least Squares Approximation

Problem 31EQ

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Period	Demand	2 MA Forecast	Error square 2 MA= (De- Forecast)²
1	200
2	245
3	190	(200+245)/2=222.5
4	270	(245+190)/2=217.5	(270-217.5)²=2756.25
5	280	(190+270)/2=230	(280-230)²=2500
6	300	(270+280)/2=275	(300-275)²=625
7	320	(280+300)/2=290	(320-290)²=900
8	340	(300+320)/2=310	(340-310)²=900
9	320	(320+340)/2=330	(320-330)²=100
10	280	(340+320)/2=330	(280-330)²=2500

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