A customer comment phone line is staffed from 8:00 a.m. to 4:30 p.m. five days a week. Records are available that show the number of calls received every day for the last five weeks as shown in the following table. Assume the time series has seasonality without trend. Week Day Number 1 M 29 T 13 W 15 TH 14 F 22 2 M 24 T 9 W 15 TH 13 F 25 3 M 33 T 14 W 16 TH 12 F 20 4 M 26 T 12 W 15 TH 17 F 23 5 M 25 T 10 W 19 TH 16 F 24
A customer comment phone line is staffed from 8:00 a.m. to 4:30 p.m. five days a week. Records are available that show the number of calls received every day for the last five weeks as shown in the following table. Assume the time series has seasonality without trend. Week Day Number 1 M 29 T 13 W 15 TH 14 F 22 2 M 24 T 9 W 15 TH 13 F 25 3 M 33 T 14 W 16 TH 12 F 20 4 M 26 T 12 W 15 TH 17 F 23 5 M 25 T 10 W 19 TH 16 F 24
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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A customer comment phone line is staffed from 8:00 a.m. to 4:30 p.m. five days a week. Records are available that show the number of calls received every day for the last five weeks as shown in the following table. Assume the time series has seasonality without trend.
| Week | Day | Number |
|---|---|---|
| 1 | M | 29 |
| T | 13 | |
| W | 15 | |
| TH | 14 | |
| F | 22 | |
| 2 | M | 24 |
| T | 9 | |
| W | 15 | |
| TH | 13 | |
| F | 25 | |
| 3 | M | 33 |
| T | 14 | |
| W | 16 | |
| TH | 12 | |
| F | 20 | |
| 4 | M | 26 |
| T | 12 | |
| W | 15 | |
| TH | 17 | |
| F | 23 | |
| 5 | M | 25 |
| T | 10 | |
| W | 19 | |
| TH | 16 | |
| F | 24 |
(a)
Solve for the forecast equation that minimizes the sum of squared error.
x1 = 1 if Monday, 0 otherwise; x2 = 1 if Tuesday, 0 otherwise; x3 = 1 if Wednesday, 0 otherwise; x4 = 1 if Thursday, 0 otherwise.
t =
(b)
Forecast the five days of Week 6.
Week 6 Monday forecast callsWeek 6 Tuesday forecast callsWeek 6 Wednesday forecast callsWeek 6 Thursday forecast callsWeek 6 Friday forecast calls
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