Chapter 13, Problem 1SE

What is the fundamental condition required for inference from a sample to a population?

To determine

Determine the fundamental condition for inference from a sample to a population.

Explanation of Solution

The sample is a set of observations collected from a large population. As it is difficult to collect the data from the whole population, the sample is used to make inference about the population.

In order to get the reliable results from the sample data, the sample obtained should be a random sample. The random sampling methods should be used to collect the sample observations from the population, so that the bias can be reduced.