Pregunta
upstudy study bank question image url

You take a sample of size 35 from a very large population in which the true proportion of males is \( p=0.52 \). Which of the statements below best describes what is known about the sampling distribution of \( \hat{p} \), the sample proportion of males?

Ask by Fuentes Boone. in the United States
Feb 26,2025

Solución de inteligencia artificial de Upstudy

Respuesta verificada por el tutor

Responder

The sampling distribution of \( \hat{p} \) is approximately normal with a mean of 0.52 and a standard deviation of approximately 0.084.

Solución

To determine what is known about the sampling distribution of \( \hat{p} \), the sample proportion of males, we can use the properties of the sampling distribution of a proportion. Given: - Sample size \( n = 35 \) - True proportion of males in the population \( p = 0.52 \) The sampling distribution of \( \hat{p} \) is approximately normal with mean \( p \) and standard deviation \( \sqrt{\frac{p(1-p)}{n}} \). Therefore, the sampling distribution of \( \hat{p} \) is approximately normal with mean \( 0.52 \) and standard deviation \( \sqrt{\frac{0.52(1-0.52)}{35}} \). Let's calculate the standard deviation of the sampling distribution of \( \hat{p} \). Calculate the value by following steps: - step0: Calculate: \(\sqrt{\frac{0.52\left(1-0.52\right)}{35}}\) - step1: Subtract the numbers: \(\sqrt{\frac{0.52\times 0.48}{35}}\) - step2: Multiply the numbers: \(\sqrt{\frac{0.2496}{35}}\) - step3: Divide the terms: \(\sqrt{\frac{156}{21875}}\) - step4: Use the properties of radicals: \(\frac{\sqrt{156}}{\sqrt{21875}}\) - step5: Simplify the expression: \(\frac{2\sqrt{39}}{25\sqrt{35}}\) - step6: Multiply by the Conjugate: \(\frac{2\sqrt{39}\times \sqrt{35}}{25\sqrt{35}\times \sqrt{35}}\) - step7: Multiply the numbers: \(\frac{2\sqrt{1365}}{25\sqrt{35}\times \sqrt{35}}\) - step8: Multiply the numbers: \(\frac{2\sqrt{1365}}{875}\) The standard deviation of the sampling distribution of \( \hat{p} \) is approximately \( 0.084448 \). Therefore, the statement that best describes what is known about the sampling distribution of \( \hat{p} \) is that it is approximately normal with mean \( 0.52 \) and standard deviation \( 0.084448 \).

Respondido por UpStudy AI y revisado por un tutor profesional

error msg
Explicar
Simplifique esta solución

preguntas relacionadas

Latest Statistics Questions

¡Prueba Premium ahora!
¡Prueba Premium y hazle a Thoth AI preguntas de matemáticas ilimitadas ahora!
Quizas mas tarde Hazte Premium
Estudiar puede ser una verdadera lucha
¿Por qué no estudiarlo en UpStudy?
Seleccione su plan a continuación
Prima

Puedes disfrutar

Empieza ahora
  • Explicaciones paso a paso
  • Tutores expertos en vivo 24/7
  • Número ilimitado de preguntas
  • Sin interrupciones
  • Acceso completo a Respuesta y Solución
  • Acceso completo al chat de PDF, al chat de UpStudy y al chat de navegación
Básico

Totalmente gratis pero limitado

  • Solución limitada
Bienvenido a ¡Estudia ahora!
Inicie sesión para continuar con el recorrido de Thoth AI Chat
Continuar con correo electrónico
O continuar con
Al hacer clic en "Iniciar sesión", acepta nuestros términos y condiciones. Términos de Uso & Política de privacidad