Statistics And Probability Archive: Questions from April 21, 2023
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15. Let \[ f_{X, Y}(x, y)=\left\{\begin{array}{ll} \frac{1}{3}(x+y) & 0 \leq x \leq 1,0 \leq y \leq 2 \\ 0 & \text { otherwise. } \end{array}\right. \] Find \( \mathbb{V}(2 X-3 Y+8) \).2 answers -
Instrucciones: Para cada uno de los siguientes casos: a) Establezca las hipótesis estadÃsticas, b) Calcule el estadÃstico de prueba adecuado, c) Dibuje la región de rechazo en base al nivel de si
Caso 2: Cuando la población no sigue una distribución normal y la desviación estándar poblacional desconocida 4. En una muestra de 35 adolescentes que se prestaron como voluntarios para un estudio2 answers -
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