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Frankie1200DAT/565 v3
Data for Time Series Modeling Exercise Questions Requiring MegaStat
DAT/565 v3
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Data for Time Series Modeling Exercise Questions Requiring MegaStat
Use the following data for Wk 6 time series modeling exercise questions that require MegaStat.
Time Series Modeling Exercise 14-30, Connect Question 7
See output and graph MegaStat:
Qtr1 Index |
Qtr2 Index |
Qtr3 Index |
Qtr4 Index |
0.800 |
0.979 |
0.901 |
1.320 |
Time Series Modeling Exercise 14-32, Connect Question 8
Columns 2-4 contain calculation of seasonal indexes. From MegaStat:
|
1 |
2 |
3 |
4 |
1005 |
- |
- |
1.045 |
0.957 |
1006 |
0.890 |
1.084 |
1.053 |
0.927 |
1007 |
0.910 |
1.099 |
1.043 |
0.952 |
1008 |
0.928 |
1.129 |
1.054 |
0.909 |
1009 |
0.932 |
1.074 |
1.032 |
0.952 |
1010 |
0.942 |
1.032 |
- |
- |
mean |
0.920 |
1.083 |
1.045 |
0.940 |
adjusted |
0.923 |
1.087 |
1.048 |
0.942 |
Time Series Modeling Exercise 14-7, Connect Question 16
From MegaStat:
Error |
a = .10 |
a = .20 |
a = .30 |
Mean Squared Error |
0.039 |
0.028 |
0.021 |
Mean Absolute Percent Error |
3.8% |
3.1% |
2.7% |
Percent Positive Errors |
42.3% |
46.2% |
51.9% |
Forecast for Period 53 |
4.3 |
4.37 |
4.43 |
Data courtesy of McGraw-Hill Education
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