1000 people (350 less than or equal to 20 years old, and 650 greater than 20 years old) were asked, "Which take-out food do you prefer – junk food or healthy food? The results were: Junk food Healthy food Ages <= 20 225 125 Ages > 20 350 300 Calculate chi-square Note : Expected value is calculated using the following equation Please see the img
1000 people (350 less than or equal to 20 years old, and 650 greater than 20 years old) were asked, "Which take-out food do you prefer – junk food or healthy food? The results were: Junk food Healthy food Ages <= 20 225 125 Ages > 20 350 300 Calculate chi-square Note : Expected value is calculated using the following equation Please see the img
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
1000 people (350 less than or equal to 20 years old, and 650 greater than 20 years old) were asked, "Which take-out food do you prefer – junk food or healthy food?
The results were:
|
|
Junk food |
Healthy food |
|
Ages <= 20 |
225 |
125 |
|
Ages > 20 |
350 |
300 |
Calculate chi-square
Note :
Expected value is calculated using the following equation
Please see the img
Transcribed Image Text:1000 people (350 less than or equal to 20 years old, and 650 greater than 20
years old) were asked, "Which take-out food do you prefer - junk food or
healthy food?
The results were:
Calculate chi-square X²
Note :
eij
Ages <= 20
Ages > 20
=
22
225
=
350
Expected value ei; is calculated using the following equation
count (a₁) count (bj)
Junk food
count (rowi) count (column))
n
125
300
Healthy food
row total column total
overal total
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