In a random sample taken from San Bernardino County residents, it is noted that 83% of the residents oppose a new landfill.



What is the population? The type of sample?

Respuesta :

Using sampling concepts, it is found that:

  • The population is all San Bernardino County residents.
  • The type of sample is random.

Information is taken from a sample, and the population of interest in the sample is the population in the study. For example:

I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents whether they are Bills fans.

  • The sample is the 1000 residents.
  • The population is all New York state residents.

Samples are also classified as:

  • Convenient: Drawn from a conveniently available pool.
  • Random: All the options into a hat and drawn some of them.
  • Systematic: Every kth element is taken.  
  • Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
  • Stratified: Also divides the population into groups. However, only some elements of each group are surveyed.

In this problem:

  • It is stated that it is a random sample.
  • Sample of a number of San Bernardino County residents, thus the population is composed by all San Bernardino County residents.

A similar problem is given at https://brainly.com/question/25122507