In: Accounting
Q31. 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. Excel Data can be found in Data Tab/Sheet
a. Show a time series data plot of data and describe your observation in terms of pattern, trend, etc.
b. Use a dummy variable method forecasting method to produce Week 6’s Daily and total calls for Week 6.
Week | Day | Number of Calls |
1 | M | 31 |
T | 15 | |
W | 19 | |
TH | 18 | |
F | 26 | |
2 | M | 28 |
T | 13 | |
W | 17 | |
TH | 17 | |
F | 29 | |
3 | M | 35 |
T | 18 | |
W | 18 | |
TH | 16 | |
F | 24 | |
4 | M | 30 |
T | 16 | |
W | 19 | |
TH | 21 | |
F | 27 | |
5 | M | 29 |
T | 14 | |
W | 21 | |
TH | 20 | |
F | 28 |
Data Table
Ans-(a)
Observations:
Ans-(b)
Data table for Forecast
Data Forecast setting in excel
Daily Forecasted Calls for week - 6
5 week actual plus 6th week forecast chart: