For a certain company, the monthly percentages of all shipments received on time over the past 12 months are 80, 82, 84, 83, 82, 84, 85, 84, 82, 83, 84, and 83. (a) Construct a time series plot. 85 84- 83 Imm 82 81 80- 79 O 86- 85- 84 83 82 81 80 79 78- 77 01 2 345 6 7 8 9 10 11 12 13 Month 86- 85 84 83 82 81 80- 79- 78- 77 86 01 2 34 56 7 Month 8 9 10 11 12 13 78 77 0 1 2 3 4 86 85 84- 83- mm 82- 81 80- 79 78- 77 0 1 5 6 7 8 9 10 11 12 13 2 3 4 Month 5 6 7 8 Month 9 10 11 12 13 What type of pattern exists in the data? The last two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal pattern. The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a seasonal pattern. Ⓡ O The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a cyclical pattern. O The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal pattern. O Overall, the time series plot exhibits a consistent trend pattern. (b) Compare a three-month moving average forecast with the exponential smoothing forecast for a = 0.1. Compute the MSE for the three-month moving average forecast. (Round your answer to two decimal places.) Compute the MSE for the exponential smoothing forecast for a = 0.1. (Round your answer to two decimal places.) Which provides more accurate forecasts using MSE as the measure of forecast accuracy? An exponential smoothing forecast with a = 0.1 provides the most accurate forecast using MSE. O A 3-month moving average provides the most accurate forecast using MSE. Both forecasts provide the same level of accuracy using MSE.
For a certain company, the monthly percentages of all shipments received on time over the past 12 months are 80, 82, 84, 83, 82, 84, 85, 84, 82, 83, 84, and 83. (a) Construct a time series plot. 85 84- 83 Imm 82 81 80- 79 O 86- 85- 84 83 82 81 80 79 78- 77 01 2 345 6 7 8 9 10 11 12 13 Month 86- 85 84 83 82 81 80- 79- 78- 77 86 01 2 34 56 7 Month 8 9 10 11 12 13 78 77 0 1 2 3 4 86 85 84- 83- mm 82- 81 80- 79 78- 77 0 1 5 6 7 8 9 10 11 12 13 2 3 4 Month 5 6 7 8 Month 9 10 11 12 13 What type of pattern exists in the data? The last two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal pattern. The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a seasonal pattern. Ⓡ O The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a cyclical pattern. O The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal pattern. O Overall, the time series plot exhibits a consistent trend pattern. (b) Compare a three-month moving average forecast with the exponential smoothing forecast for a = 0.1. Compute the MSE for the three-month moving average forecast. (Round your answer to two decimal places.) Compute the MSE for the exponential smoothing forecast for a = 0.1. (Round your answer to two decimal places.) Which provides more accurate forecasts using MSE as the measure of forecast accuracy? An exponential smoothing forecast with a = 0.1 provides the most accurate forecast using MSE. O A 3-month moving average provides the most accurate forecast using MSE. Both forecasts provide the same level of accuracy using MSE.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![For a certain company, the monthly percentages of all shipments received on time over the past 12 months are 80, 82, 84, 83,
82, 84, 85, 84, 82, 83, 84, and 83.
(a) Construct a time series plot.
85
84
83
82
Imm
81
80
79
O
Monthly Percentage
86
85
84
83
82
81
80-
79
78
77
01 2 3 4 5 6 7 8 9 10 11 12 13
Month
86-
85
84
83
81
80
79
78
77
012 34 5 6 7
Month
8
9 10 11 12 13
Monthly Percentage
86
78
77
86
85
84
83
81
80
79
78
77
01 2 3 4
0 1 2 3
4
5
5
6
7
Month
8 9 10 11 12 13
67 8 9 10 11 12 13
Month
What type of pattern exists in the data?
The last two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal
pattern.
The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a seasonal
pattern.
The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a cyclical
pattern.
i
O The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal
pattern.
O Overall, the time series plot exhibits a consistent trend pattern.
(b) Compare a three-month moving average forecast with the exponential smoothing forecast for a = 0.1.
Compute the MSE for the three-month moving average forecast. (Round your answer to two decimal places.)
Compute the MSE for the exponential smoothing forecast for a = 0.1. (Round your answer to two decimal places.)
Which provides more accurate forecasts using MSE as the measure of forecast accuracy?
An exponential smoothing forecast with a = 0.1 provides the most accurate forecast using MSE.
O A 3-month moving average provides the most accurate forecast using MSE.
Both forecasts provide the same level of accuracy using MSE.
(c) Using the more accurate forecast, what is the forecast for next month? (Round your answer to two decimal places.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F801f7f30-9280-440d-8188-3cd251363077%2F10ea5031-1d4d-4963-9f69-c2ba97e6ce2f%2Fbj85nt_processed.jpeg&w=3840&q=75)
Transcribed Image Text:For a certain company, the monthly percentages of all shipments received on time over the past 12 months are 80, 82, 84, 83,
82, 84, 85, 84, 82, 83, 84, and 83.
(a) Construct a time series plot.
85
84
83
82
Imm
81
80
79
O
Monthly Percentage
86
85
84
83
82
81
80-
79
78
77
01 2 3 4 5 6 7 8 9 10 11 12 13
Month
86-
85
84
83
81
80
79
78
77
012 34 5 6 7
Month
8
9 10 11 12 13
Monthly Percentage
86
78
77
86
85
84
83
81
80
79
78
77
01 2 3 4
0 1 2 3
4
5
5
6
7
Month
8 9 10 11 12 13
67 8 9 10 11 12 13
Month
What type of pattern exists in the data?
The last two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal
pattern.
The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a seasonal
pattern.
The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a cyclical
pattern.
i
O The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal
pattern.
O Overall, the time series plot exhibits a consistent trend pattern.
(b) Compare a three-month moving average forecast with the exponential smoothing forecast for a = 0.1.
Compute the MSE for the three-month moving average forecast. (Round your answer to two decimal places.)
Compute the MSE for the exponential smoothing forecast for a = 0.1. (Round your answer to two decimal places.)
Which provides more accurate forecasts using MSE as the measure of forecast accuracy?
An exponential smoothing forecast with a = 0.1 provides the most accurate forecast using MSE.
O A 3-month moving average provides the most accurate forecast using MSE.
Both forecasts provide the same level of accuracy using MSE.
(c) Using the more accurate forecast, what is the forecast for next month? (Round your answer to two decimal places.)
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