You are conducting a test of independenc for the claim that there is an association between the row variable and the columr variable. XY A8 48 31 z A x| B 18 56 23 The expected observations for this table would be X Y A В
You are conducting a test of independenc for the claim that there is an association between the row variable and the columr variable. XY A8 48 31 z A x| B 18 56 23 The expected observations for this table would be X Y A В
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:What is the chi-square test-statistic for this
data?
x²
Report all answers accurate to three
decimal places.
Transcribed Image Text:You are conducting a test of independence
for the claim that there is an association
between the row variable and the column
variable.
x Y Z
A 8
48 31
B 18 56 23
The expected observations for this table
would be
Y
А
В
Expert Solution
Given information
The following table is given in the question:
| X | Y | Z | Row total | |
| A | 8 | 48 | 31 | 87 |
| B | 18 | 56 | 23 | 97 |
| Column total | 26 | 104 | 54 | Grand total =184 |
The formula for calculating expected observations is as follows:
The formula for calculating chi-square test-statistic is as follows:
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