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“Z” de 2 colas

English translation: two tailed z-score

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Spanish term or phrase:“Z” de 2 colas
English translation:two tailed z-score
Entered by: Louise Etheridge

13:36 Dec 20, 2013
Spanish to English translations [PRO]
Marketing - Marketing / Market Research / Study on cosmetics
Spanish term or phrase: “Z” de 2 colas
This appears in a presentation regarding the findings of a study on cosmetics:

'Las diferencias estadísticas fueron calculadas al 95% de confianza con una “Z” de 2 colas y están representadas por letras en color rojo:
A, B, C, etc.'

I'm not sure whether '2 cola's refers to the inverted commas either side of the Z, or represents the shape in a graph (although there doesn't appear to be one in the presentation showing this).

Many thanks
Louise Etheridge
United Kingdom
Local time: 17:28
two tailed z-score
Explanation:
The z-score is a way to work out the confidence level in stats, so it relates to the 95%. Have a look at the reference below as it explains the z-test. The two-tailed refers to the probability value, but since the article you quoted doesn't mention the probability (p) it's probably better to keep it simple.
Selected response from:

Elaine Colgan
United Kingdom
Local time: 17:28
Grading comment
Many thanks again Elaine!
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +2two tailed z-score
Elaine Colgan


  

Answers


2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
two tailed z-score


Explanation:
The z-score is a way to work out the confidence level in stats, so it relates to the 95%. Have a look at the reference below as it explains the z-test. The two-tailed refers to the probability value, but since the article you quoted doesn't mention the probability (p) it's probably better to keep it simple.


    Reference: http://en.wikipedia.org/wiki/Z-test
Elaine Colgan
United Kingdom
Local time: 17:28
Native speaker of: English
PRO pts in category: 4
Grading comment
Many thanks again Elaine!
Notes to answerer
Asker: Great, many thanks for your answer Elaine!


Peer comments on this answer (and responses from the answerer)
agree  neilmac
28 mins
agree  raptisi
23 hrs
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