Forecasting part 2 - Exponential smoothing with trend adjustment

Hi guys! I am Ezrha and a Certified Industrial Engineer. I am part of the 4th batch of CIE takers and passers back in November 2012.
I teach professional courses such as Methods Engineering, Ergonomics, Production planning and control, Statistical quality control, Advanced statistics, Operations Research, and Facilities planning and design principles, and Engineering economy.
I like creating learning videos for my students to aid in their lectures.
Feel free to comment on them if you have questions about the material, or if you have suggestions or requests for topics that I can discuss :)
For inquiries, you may contact me through [e-mail]

[@fridayvalencia4898]

Thank you po. Baka may vid po kayo on LP basics

[@arnoldpamintuan4082]

Hii Thank you , Great work. However may I ask if you have video for Linear Regression - Associative Model. TIA.

[@EzrhaGodilano]

Hello! I currently have no video for that. But you can solve some using your scientific calculator. Just treat the period as x, and the actual values as y. Then project the value using the line equation, y = a+bx

[@kamidmarcelllozanomena6861]

all good, but you forgot to talk about Trend projection and Linear Regression to complete the forecast course

[@EzrhaGodilano]

Hello! Thank you for watching. I focused more on the topics with long hand solutions. Regression methods are mostly done with the aid of calculator functions.

[@mariacortes6412]

FIT is subtract po not addition

[@EzrhaGodilano]

Hello. Can you show your reference po? I’m using Operations Management by Heizer and Render. This topic was taught to us since 2010.

[@EzrhaGodilano]

Also, this example was lifted in the textbook. I’m just here to explain how to solve it. Would appreciate if you can provide reliable sources ;)

[@timothyochoa5906]

.2x12+1-.2x13 is = -1.7 bakit ganun hahaha

[@EzrhaGodilano]

Timothy Ochoa hi! saang period ito? Alpha is 0.2 and Beta is 0.4.

[@EzrhaGodilano]

If you input the formula in your calculator that should be 0.2(12) + (1-0.2)(13) = 12.80

[@timothyochoa5906]

What about the the T? Lumalabas sakin 2.52. sayo 1.92. paano nangyari?

[@EzrhaGodilano]

T = 0.4(12.80-11) + (1-0.4)(2) = 1.92 Nasa formula mo po yan or pag input sa calcu :)

[@kuro-ringo9175]

@@EzrhaGodilano miss goodnoon bakit po walang minus 1 yong 12?