Glossary entry (derived from question below)
Spanish term
Spain
Fast, accurate business & law specialist
Native in: English 
Works in: Spanish to English
tablas
t tablas = 2,145
the "tablas" appears in little letters below the "t"
| 3 | tables |
Margaret Schroeder
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| 5 +2 | tables (of t values) |
Andrés Martínez
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Mar 27, 2006 18:51: Andrés Martínez changed "Field (specific)" from "Chemistry; Chem Sci/Eng" to "Mathematics & Statistics"
Proposed translations
Mexico
The right words in the right place.
Native in: English (Variants: US, Canadian)
Works in: Spanish to English, English
tables
Spain
Biologist -Biol Biotech Med Pharm Vet
Native in: Spanish (Variant: Standard-Spain) , Catalan (Variant: Central) 
Works in: English to Spanish, Spanish, Catalan to Spanish, and 2 more.
tables (of t values)
Se refiere al valor que aparece en tablas estadísticas preparadas para el test de la t de Student. Igual en inglés.
http://www.atarimagazines.com/v8n8/statwhiz.html
INDEPENDENT T-TEST - The Student's t or T-test allows you to evaluate two independent samples for significant differences between their means. An example would be the sprint times of two groups of athletes running under different conditions.
In order to evaluate the significance of the calculated t value, you will need the *** table of critical t values which is listed in most books on statistics. *** If the calculated t value is greater than the tabled value for t, the difference between the sample means is significant - in other words, the differences did not occur because of chance.
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Note added at 23 mins (2006-03-27 19:05:52 GMT)
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En esta página aparece al final una de las tablas estadísticas de la t de Student:
http://www.fisterra.com/mbe/investiga/var_cuantitativas/var_...
En el ejemplo previo con 20 niños, los grados de libertad son 18 y ***el valor de la tabla de la t de student*** para una seguridad del 95% es de 2.10 y para un 99% de seguridad el valor es 2.88. (Tabla 2)
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