Multiple Regression - Dummy or indicator variables, using Excel output

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This video provides an illustration of the use of dummy or indicator variables in a multiple regression model.
It builds on the ideas introduced in Multiple Regression Overview: • Multiple Regression: A...
The data used in this example was also used in the ANOVA video: • Understanding Analysis...
This data is from Statistics New Zealand and is an earlier version of this data: www.stats.govt...
Background links
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Dr Nic Videos about Multiple Regression
==================================
Overview • Multiple Regression: A...
Inference (t-tests and F-test) • Multiple Regression - ...
Dummy Variables (this one)
Interpreting coefficients • Multiple Regression - ...
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Statistical inference in multiple regression: • Multiple Regression - ...
There will be other videos to follow on from this.
See creativemaths.... for all of Dr Nic's videos organised by topic.
#Statistics #DrNicStats
The data used in this video is from Statistics New Zealand and is an earlier version of this data: www.stats.govt...

Опубликовано:

20 сен 2024

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Комментарии : 20

@yub7407 Год назад

many thanks Dr.Nic. This video will resolve all of my essay concerns in Data analysis

@DrNic Год назад

Happy to hear that

@pillslifestylereviews6714 8 месяцев назад

Perfect explanation as always!

@DrNic 8 месяцев назад

Glad you think so!

@judeboy7002 2 года назад

Thanks Dr. Nic. Question: is there a particular order of assigning dummy variables to ordinal data e.g. do I start assigning 1 and 2 or 0 and 1? do we start from zero going forward or from 1. can i assign from any number going forward?

@DrNic 2 года назад

Each dummy variable is assigned 0 or 1 according to whether the observation belongs to that group

@donnagreene9920 2 года назад

How would I figure out a problem where I have 12 classes taught by 4 teachers: who to give the 13th class to with data from 3 categories?

@DrNic 2 года назад

I'm sorry I'm not sure I understand your question. With 12 classes if you need a dummy variable for each one, you need 11 dummy variables and the 12th one is when all the others are zero.

@albertorossi6380 3 года назад

Well done, again!

@DrNic 3 года назад

Thanks Alberto - I appreciate the feedback.

@justaminute3751 3 года назад

Hello Dr Nic , Can I Ask You Which Programs You Prefer For Me To Use If I Don't Want To Use (Excel)

@DrNic 3 года назад

If you are a serious stats person you should possibly use R. I tend to use SPSS except I can't afford it so I use JASP which is free. For exploratory work, iNZight Lite is good. I used to teach with Minitab, which is a very nice teaching program. This blog post is still pretty relevant. creativemaths.net/blog/excel-spss-minitab-or-r/ And a suggestion - don't write in Title Case - it looks weird and makes it difficult to read.