• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Free ACCA & CIMA online courses from OpenTuition

Free ACCA & CIMA online courses from OpenTuition

Free Notes, Lectures, Tests and Forums for ACCA and CIMA exams

  • ACCA
  • CIMA
  • FIA
  • OBU
  • Books
  • Forums
  • Search
  • Register
  • Login
  • ACCA Forums
  • Ask ACCA Tutor
  • CIMA Forums
  • Ask CIMA Tutor
  • FIA
  • OBU
  • Buy/Sell Books
  • All Forums
  • Latest Topics

ACCA Options: NEW MOCKS, debrief videos and "Read the Mind". Learn more >>

20% off BPP Books for ACCA & CIMA exams - Get BPP Discount Code >>

Time series

Forums › Ask ACCA Tutor Forums › Ask the Tutor ACCA PM Exams › Time series

  • This topic has 1 reply, 2 voices, and was last updated 8 months ago by John Moffat.
Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • November 25, 2021 at 7:06 pm #641627
    lokeshdh00
    • Topics: 105
    • Replies: 95
    • ☆☆☆

    Hi John, i hope you are well, I was watching f2 time series and regression analysis lectures, I had a doubt.

    After finding Trend/centered avg. and then finding Seasonal variations in additive model. and then we find avg. seasonal variations.

    now my doubt is, If i was asked to forecast future values with seasonal variations. should i use the avg. seasonal variations OR i make sure those additive model averages add up to ZERO and if they don’t ,i use the difference to adjust in avg. seasonal variations and then use the adjusted figures in forecating.

    i mean same thing will be applicable for multiplcative model except it should addup to 100*no. of seasons/ period

    November 26, 2021 at 6:02 am #641655
    John Moffat
    Keymaster
    • Topics: 57
    • Replies: 50053
    • ☆☆☆☆☆

    With the additive model you should calculate the average seasonal variation for each season and then adjust them so that they add up to zero.

    With the multiplicative model you should calculate the average seasonal % and then adjust so that they add up to 100 x number of seasons %.

  • Author
    Posts
Viewing 2 posts - 1 through 2 (of 2 total)
  • You must be logged in to reply to this topic.
Log In

Primary Sidebar

ACCA News:

ACCA Introducing professional skills into the Options exams

ACCA Professional Skills Webinar – Register now

Donate

If you have benefited from OpenTuition please donate.

Specially for OpenTuition students

20% off BPP Books

Get BPP Discount Code

Latest comments

  • sashafarah on Accounting Conventions and Policies – ACCA Financial Accounting (FA) lectures
  • John Moffat on Objectives of organisations – ACCA (AFM) lectures
  • jcas on LW English Chapter 5 Questions Common Law
  • S4M101 on ACCA FR Chapter 10 Agriculture (IAS 41) Questions
  • axel.frederick on Objectives of organisations – ACCA (AFM) lectures

Copyright © 2022 · Support · Contact · Advertising · OpenLicense · About · Sitemap · Comments · Log in


We use cookies to show you relevant advertising, find out more: Privacy Policy · Cookie Policy