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April 30th, 2018, 01:11 PM   #1
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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



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



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!
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April 30th, 2018, 01:48 PM   #2
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can you post the entire problem?
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April 30th, 2018, 09:34 PM   #3
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Quote:
Originally Posted by romsek View Post
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
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April 30th, 2018, 09:44 PM   #4
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Quote:
Originally Posted by romsek View Post
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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