Statistics And Probability Archive: Questions from January 30, 2023
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I. Prueba de Hipótesis e intervalos de confianza. 1. Utilizando la siguiente información \[ \begin{array}{l} \text { Ho: } \mu_{1}=14 \\ \text { Ha: } \mu_{1} \neq 14 \end{array} \] \[ \begin{array}2 answers -
2. Utilizando la siguiente información \[ \begin{array}{l} \text { Ho: } \mu_{1}=18 \\ \text { Ha: } \mu_{1}>18 \\ \text { Muestra } \\ \text { N=36 } \\ \mathrm{S}=5 \\ \bar{X}=20 \end{array} \] a.0 answers -
3. Utilizando la siguiente información. Determinada institución afirma que la proporción defectos en determinado componente es de \( 37 \% \). Se desea validar que la proporción de defectos es dif2 answers -
4.Las empresas de seguridad de Wall Street pagaron en 2010 gratificaciones de fin de año a un promedio de \( \$ 125,500 \) por empleado. Suponga que se desea tomar una muestra de los empleados de la2 answers -
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Calculate \( E(Y) \) for the following pdfs: (a) \( f_{Y}(y)=3(1-y)^{2}, 0 \leq y \leq 1 \) (b) \( f_{Y}(y)=\left\{\begin{array}{ll}\frac{3}{4} & 0 \leq y \leq 1 \\ \frac{1}{2} & 2 \leq y \leq 3\end{a2 answers -
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¿Cuál de los siguientes es un ejemplo de una escala de razón? Un peso B género temperatura C carrera1 answer
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