{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

4QA3 F12 Week 5 Lecture Notes

# 4qa3 f12 26 here the independent variable corresponds

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ) i Ft = ∑α 1 − α Dt −i−1 i =0 ●  Hence the method applies a set of exponentially declining weights to all past data. It is easy to show that the sum of the weights is exactly one. 4QA3 F12 21 Source: Nahmias (2009) Effect of α 4QA3 F12 22 Period Month Demand 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb 37 40 41 37 45 50 43 47 56 52 55 54 – – Forecast, Ft (α = 0.3) (α = 0.5) 4QA3 F12 37 37 37.90 38.83 38.28 40.29 43.20 43.14 44.30 47.81 49.06 50.84 51.79 ? 37 37 38.50 39.75 38.37 41.68 45.84 44.42 45.71 50.85 51.42 53.21 53.61 ? 23 70 – Actual 60 – α = 0.50 Orders 50 – 40 – α = 0.30 30 – 20 – 10 – 0 – | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 Month 4QA3 F12 24 ●  Similarities o  Both methods are...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern