Question: A major Polytechnical University collected data on yearly freshman applications (students who apply but might not be accepted or enroll). These are shown in the
A major Polytechnical University collected data on yearly freshman applications (students who apply but might not be accepted or enroll). These are shown in the following table:
| YEAR | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
| ACTUAL REGISTRATIONS | 400 | 600 | 400 | 500 | 1000 | 800 | 700 | 900 | 1200 | 1400 | 1500 | 1300 |
Use the above to answer these questions:
- Develop a 3-year MOVING AVERAGE to FORECAST applications from YEAR 2012 through YEAR 2021 (round UP no partial students please!)
- ESTIMATE the applications again for years 2012 through 2021 with a 3-year WEIGHTED MOVING AVERAGE in which registrations in the most recent year are given a weight of 2 and registrations in each of the previous 2 years are each given a weight of 1.
- Graph the ACTUAL REGISTRATIONS from the chart above against both the MOVING AVERAGE and the WEIGHTED MOVING AVERAGE. Which of the two methods comes closest to the actual and which seems better? Why? What is the trend? Discuss.
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