A market researcher is interested in determining the average income for families in Simcoe County, Ontario.To accomplish this, a random sample of 400 families is taken from the county and the data gathered is used to estimate the average income for families of the entire county.This process is an example of ___.
A)nonparametric statistics
B)nominal data
C)descriptive statistics
D)inferential statistics
E)census

Question

Quizplus · Accepted Answer

The process described involves taking a random sample and using the data to estimate a parameter (average income for families in the entire county), which is the definition of inferential statistics. Nonparametric statistics typically deal with data that does not follow a normal distribution or have a known population parameter, while nominal data refers to categorical data. Descriptive statistics involve summarizing and describing data, but do not necessarily involve making inferences about a population. A census would involve gathering data from every member of a population, rather than just a sample.

A Market Researcher Is Interested in Determining the Average Income