In a survey conducted with 1000 individuals (350 of whom were aged 20 or under, and 650 over age 20), they were questioned, "Which kind of takeaway food do you prefer – unhealthy or nutritious?             The results were:

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
In a survey conducted with 1000 individuals (350 of whom were aged 20 or under, and 650 over age 20), they were questioned, "Which kind of takeaway food do you prefer – unhealthy or nutritious?             The results were:
Calculate chi-square X²
Note :
Ages <= 20
Ages > 20
eij
count (ai) * count (bj)
n
225
350
=
unhealthy
Expected value eij is calculated using the following equation
125
300
nutritious
count (rowi) * count (column)) row total column total
n
overal total
Transcribed Image Text:Calculate chi-square X² Note : Ages <= 20 Ages > 20 eij count (ai) * count (bj) n 225 350 = unhealthy Expected value eij is calculated using the following equation 125 300 nutritious count (rowi) * count (column)) row total column total n overal total
Expert Solution
steps

Step by step

Solved in 4 steps with 6 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman