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-   -   Statistics - Pearson correlation coefficient (http://mymathforum.com/advanced-statistics/344160-statistics-pearson-correlation-coefficient.html)

IlanSherer April 30th, 2018 12:11 PM

Statistics - Pearson correlation coefficient
 
Hello :)

Can you explain me please about the following explanation:

Is there a connection between the number of employee subtractions and his motivation (I will attach a picture here)?

x = the number of employee subtractions
y = motivation

https://i.imgur.com/Z114YRE.png

About two left columns in the table - it's just a calculation.
And then:

https://i.imgur.com/AITFGo5.png

The answer is -0.85, therefore, there is a negative connection with strong intensity.


I didn't understand how and where the numbers of Rx and Ry (from the table) came from? I understood about: high=4.5 or 2=3, it's about ratings from low to high, but why these numbers? why it started from 1 in Rx and 1.5 in Ry?


Thanks!

romsek April 30th, 2018 12:48 PM

can you post the entire problem?

IlanSherer April 30th, 2018 08:34 PM

Quote:

Originally Posted by romsek (Post 593575)
can you post the entire problem?

Omg, I'm really sorry but it's not Pearson, it's Spearman's rank correlation coefficient: https://en.wikipedia.org/wiki/Spearm...on_coefficient

The entire post is only about Spearman.
Sorry again, sometimes I get confused between these names (Pearson and Spearman).

Do you still need the entire problem? if yes, I will post it :)

IlanSherer April 30th, 2018 08:44 PM

Quote:

Originally Posted by romsek (Post 593575)
can you post the entire problem?

Someone did explain me about Rx and Ry, so everything is fine now, thanks anyway!

Have a good week :)


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