the head librarian at springfield public library is considering creating a special section of the library…

the head librarian at springfield public library is considering creating a special section of the library just for middle and high school students. shes not sure if students would use the section, and it would take a long time to ask every middle and high school student in springfield, so she surveys 25 students who visit the library one weekend. what sample is the librarian using? all the middle and high school students in springfield the 25 students surveyed by the librarian the residents who visit the library regularly all the residents of springfield

the head librarian at springfield public library is considering creating a special section of the library just for middle and high school students. shes not sure if students would use the section, and it would take a long time to ask every middle and high school student in springfield, so she surveys 25 students who visit the library one weekend. what sample is the librarian using? all the middle and high school students in springfield the 25 students surveyed by the librarian the residents who visit the library regularly all the residents of springfield

Answer

Brief Explanations:

Para determinar la muestra, debemos recordar que la muestra es el conjunto de individuos seleccionados para el estudio. El bibliotecario encuestó a 25 estudiantes que visitaron la biblioteca un fin de semana. Analicemos las opciones:

  • "all the middle and high school students in Springfield" es la población objetivo, no la muestra.
  • "the 25 students surveyed by the librarian" son los individuos seleccionados para el estudio, por lo que es la muestra.
  • "the residents who visit the library regularly" no coincide, ya que el estudio es sobre estudiantes de secundaria y preparatoria que visitan la biblioteca, no todos los residentes que visitan regularmente.
  • "all the residents of Springfield" es la población general de Springfield, no la muestra del estudio sobre estudiantes.

Answer:

B. the 25 students surveyed by the librarian (suponiendo que la opción correcta es la segunda, identificada como "the 25 students surveyed by the librarian" en las opciones dadas. Si las opciones tuvieran identificadores como A, B, C, D, se debería ajustar, pero en este caso, la opción correcta es "the 25 students surveyed by the librarian").