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12.11: Alfabetización estadística

  • Page ID
    151995
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    Objetivos de aprendizaje

    • Efectividad de la Cirugía para la Pérdida de Peso

    La investigación sobre la efectividad de la cirugía para la pérdida de peso reportada aquí encontró que “La cirugía se asoció con una pérdida de peso significativamente mayor [que el grupo control que hizo dieta] a través de los\(2\) años (\(61.3\)versus\(11.2\) libras,\(P<0.001\))”.

    Ejemplo\(\PageIndex{1}\): what do you think

    ¿Qué prueba podría haberse utilizado y cómo se habría calculado?

    Solución

    Para cada sujeto se podría computar una puntuación de diferencia entre su peso inicial y el peso final. Entonces se\(0\) podría computar una prueba t de si la puntuación de diferencia media difiere significativamente de la. La puntuación de diferencia media será igual a la diferencia entre las pérdidas medias de peso de los dos grupos (\(61.3 - 11.2 = 50.1\)).


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