December 2021
Beginner to intermediate
1168 pages
30h 17m
English
book
Microsoft Excel Data Analysis and Business Modeling (Office 2021 and Microsoft 365), 7th Edition
by Wayne Winston
Content preview from Microsoft Excel Data Analysis and Business Modeling (Office 2021 and Microsoft 365), 7th Edition
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Chapter 57
Ratio-to-moving-average forecast method
Questions answered in this chapter:
How do I interpret seasonal indexes for a time series?
Is there an easy way to incorporate trend and seasonality into forecasting future product sales?
Often you need a simple, accurate method to predict the future quarterly revenues of a corporation or the future monthly sales of a product. The ratio-to-moving-average method provides an accurate, easy-to-use forecasting method for these situations.
Our discussion of the ratio-to-moving-average method will incorporate an additive trend. An additive trend of 10 units per quarter means, for example, that sales are increasing by 10 units per quarter. In contrast, an additive trend of –5 units per quarter means ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.