A market researcher conducted a study to see if different age groups prefer different news sources. He surveyed 80 people in the 25-49 age group and 80 people in the 50+ age group and asked them if they prefer to get their news from TV, online, radio, or printed newspapers. The data are listed in the table below. Conduct a Chi-Square test for Independence with a = .01. News source Group 18-49 Group 50+ IN Online Radio Printed papers 20 40 15 5 30 20 15 15 Total count 50 60 30 20
A market researcher conducted a study to see if different age groups prefer different news sources. He surveyed 80 people in the 25-49 age group and 80 people in the 50+ age group and asked them if they prefer to get their news from TV, online, radio, or printed newspapers. The data are listed in the table below. Conduct a Chi-Square test for Independence with a = .01. News source Group 18-49 Group 50+ IN Online Radio Printed papers 20 40 15 5 30 20 15 15 Total count 50 60 30 20
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
What are the variables and are they nominal, ordinal or continuous? Then give us the null and alternative hypothesis?
Transcribed Image Text:A market researcher conducted a study to see if different age groups prefer different news sources. He
surveyed 80 people in the 25-49 age group and 80 people in the 50+ age group and asked them if they
prefer to get their news from TV, online, radio, or printed newspapers. The data are listed in the table
below. Conduct a Chi-Square test for Independence with a.01.
News source
Group 18-49
Group 50+
TV
30
20
15
15
Online
Radio
Printed papers
20
40
15
5
Total count
50
60
30
20
Expert Solution
Step 1
The characteristic which can take different values are called the variable.
The measurement scale of the variable are as follows
- Nominal
The variable which is does not take the numerical values. Order is not important.
- Ordinal variable
The categorical variable where order is important is called ordinal variable
- Continuous variable
The variable which can take uncountable set of value or which can take any value between two numbers is called the continuous variable.
Given that,
The 80 people are surveyed in the age 25-29 and 80 people in 50+ age group.
Aksed the people if they prefer to get their news from TV, online, orprinted newspaper.
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