Are all employees equally proven to having accidents? To investigate this hypothesis, Parry (1985) looked at a light manufacturing plant classified the accidents by type and by age of the employee. Age Accident (sprain) Accident (burn) Accident (cut) Under 25 25 and over 9 61 17 13 5 12 A chi-square test gave a test-statistic of 20.78. If we test at a=0.05, which one of the following statements is CORRECT?
Are all employees equally proven to having accidents? To investigate this hypothesis, Parry (1985) looked at a light manufacturing plant classified the accidents by type and by age of the employee. Age Accident (sprain) Accident (burn) Accident (cut) Under 25 25 and over 9 61 17 13 5 12 A chi-square test gave a test-statistic of 20.78. If we test at a=0.05, which one of the following statements is CORRECT?
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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Step 1
Null Hypothesis:
H0: The age and accident type are independent.
Alternative Hypothesis:
H1: The age and accident type are not independent.
Test statistic=20.78
alpha=0.05
Number of rows=2
Number of columns=3
df=(number of rows-1)*(number of columns-1)=(2-1)*(3-1)=2
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