Chi Square Test of Independence
Authored by Kelly Palmisano
Mathematics
12th Grade
CCSS covered
Used 2+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which test would you use to see if gender is a factor choosing a person’s favorite fruit? 900 college students were surveyed and their favorite fruit recorded.
Tags
CCSS.HSS.CP.A.4
CCSS.HSS.ID.B.5
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the null hypothesis?
Tags
CCSS.HSS.CP.A.2
CCSS.HSS.CP.A.3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using a computer program, the chi-square test statistic for the commuter data is χ² = 5.37 with P-value < 0.01. If we use a = 0.05, what conclusion is appropriate?
a)Don’t reject H0; the results are significant.
b)Don’t reject H0; the results are not significant.
c)Reject H0; the results are significant.
d)Reject H0; the results are not significant.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Many state now collect data on traffic stops regarding the race of the driver. The initial concern was that Black drivers were stopped more often. With more data in hand, attention has turned to other issues. For example, data from 2533 traffic stops in Cincinnati report the race of the driver (Black, whit, or other) and whether the traffic stop resulted in a search of the vehicle. Which test would be appropriate to examine whether race is a factor in vehicle searches?
Chi-square test of homogeneity
Chi-square test of association
Chi-square GOF test
No test
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many degrees of freedom are there for a chi-square test of independence based on a table with five rows and six columns?
4
5
20
24
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