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United Dairies, Inc., supplies milk to several independent grocers throughout Dade County, Florida. Managers at United Dairies want to develop a forecast of the number of half-gallons of milk sold per week. Sales data for the past 12 weeks follow. Sales 2,750 3,100 Week 1 O 2 3 4 5 6 7 8 9 2,950 3,000 11 3,200 12 3,150 (a) Construct a time series plot. 10 34001 3200- 3,250 2,800 2,900 3,050 3200 3000 3000 EM EM 2800 2800 2600- 2600 2400 2400 3,300 3,100 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week What type of pattern exists in the data? O The time series plot indicates a trend pattern. O The time series plot indicates a cyclical pattern. 34001 O The time series plot indicates a seasonal pattern. The time series plot indicates a horizontal pattern. 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week DO 3400T 3200 3000 2800 2600 2400- 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week 3400T 3200 3000 2800- 2600 2400- 2200- 2000- 0 1 2 3 4 5 6 7 8 9 10 11 12 Week

United Dairies, Inc., supplies milk to several independent grocers throughout Dade County, Florida. Managers at United Dairies want to develop a forecast of the number of half-gallons of milk sold per week. Sales data for the past 12 weeks follow. Sales 2,750 3,100 Week 1 O 2 3 4 5 6 7 8 9 2,950 3,000 11 3,200 12 3,150 (a) Construct a time series plot. 10 34001 3200- 3,250 2,800 2,900 3,050 3200 3000 3000 EM EM 2800 2800 2600- 2600 2400 2400 3,300 3,100 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week What type of pattern exists in the data? O The time series plot indicates a trend pattern. O The time series plot indicates a cyclical pattern. 34001 O The time series plot indicates a seasonal pattern. The time series plot indicates a horizontal pattern. 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week DO 3400T 3200 3000 2800 2600 2400- 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week 3400T 3200 3000 2800- 2600 2400- 2200- 2000- 0 1 2 3 4 5 6 7 8 9 10 11 12 Week

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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United Dairies, Inc., supplies milk to several independent grocers throughout Dade County, Florida. Managers at United Dairies want to develop a forecast of the number of half-gallons of milk sold per week. Sales data for the past 12 weeks follow. Week Sales O 1 2 3 4 5 6 7 8 9 10 11 3400 3200 3000 2800 2600 2,750 2400 3,100 2200 3,250 12 3,150 (a) Construct a time series plot. 2000 2,800 2,900 3,050 3400 T 3200+ 3000 2800 WWEE 2600- 2400 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week 3,300 3,100 2,950 3,000 3,200 0 1 2 3 4 5 6 7 8 9 10 11 12 Week What type of pattern exists in the data? O The time series plot indicates a trend pattern. O The time series plot indicates a cyclical pattern. O The time series plot indicates a seasonal pattern. The time series plot indicates a horizontal pattern. Ⓡ 3400 3200 3000 2800 2600- 2400 2200 2000 GO 0 1 2 3 4 5 6 7 8 9 10 11 12 Week Ⓡ✓ 3400 3200- 3000 2800 2600- 2400 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week Ⓡ
Transcribed Image Text:United Dairies, Inc., supplies milk to several independent grocers throughout Dade County, Florida. Managers at United Dairies want to develop a forecast of the number of half-gallons of milk sold per week. Sales data for the past 12 weeks follow. Week Sales O 1 2 3 4 5 6 7 8 9 10 11 3400 3200 3000 2800 2600 2,750 2400 3,100 2200 3,250 12 3,150 (a) Construct a time series plot. 2000 2,800 2,900 3,050 3400 T 3200+ 3000 2800 WWEE 2600- 2400 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week 3,300 3,100 2,950 3,000 3,200 0 1 2 3 4 5 6 7 8 9 10 11 12 Week What type of pattern exists in the data? O The time series plot indicates a trend pattern. O The time series plot indicates a cyclical pattern. O The time series plot indicates a seasonal pattern. The time series plot indicates a horizontal pattern. Ⓡ 3400 3200 3000 2800 2600- 2400 2200 2000 GO 0 1 2 3 4 5 6 7 8 9 10 11 12 Week Ⓡ✓ 3400 3200- 3000 2800 2600- 2400 2200 2000 0 1 2 3 4 5 6 7 8 9 10 11 12 Week Ⓡ
(b) Use exponential smoothing with a = 0.7 to develop a forecast of demand (in half-gallons) for week 13. (Round your answer to the nearest integer.) half-gallons
Transcribed Image Text:(b) Use exponential smoothing with a = 0.7 to develop a forecast of demand (in half-gallons) for week 13. (Round your answer to the nearest integer.) half-gallons
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