The following two-way contingency table shows gender and opinion on the death penalty in a social...
The following two-way contingency table shows gender and opinion on the death penalty in a social survey.
| Death Penalty | ||
|---|---|---|
| Gender | Oppose | Favor |
| Male | 262 | 581 |
| Female | 484 | 680 |
Among men, what percentage favored death penalty? [Answer to 2 decimal places. Do not type % symbol in the box.] 68.92
Among females, what percentage opposed death penalty? [Answer to 2 decimal places. Do not type % symbol in the box.] 41.58
Among the males, what is the odd of favoring death penalty? [Answer to 2 decimal places.] 2.22
Among the women, what is the odd of favoring death penalty? [Answer to 2 decimal places.] 1.40
What is the odds ratio favoring death penalty for males compared to females? [Answer to 2 decimal places.] 1.59
Next we intend to test if opinion on death penalty
and gender are related or not.
What is the expected frequency of male and opposing death penalty?
[Answer to 2 decimal places.] ________________
What is the expected frequency of male and favoring death penalty? [Answer to 2 decimal places.] _______________
What is the expected frequency of female and opposing death penalty? [Answer to 2 decimal places.] __________________
What is the expected frequency of female and favoring death penalty? [Answer to 2 decimal places.] _____________________
To test independence between gender and opinion on death penalty, what is the value of chi-square test statistic? [Answer to 3 decimal places.]
Suppose we are testing:
Null hypothesis: gender and opinion on death
penalty are not related,
against
Alternative hypothesis: gender and opinion on
death penalty are related.
If the p-value associated to the ch-square test-statistics is 0
and the level of significance is 5%, what will be your
conclusion?
A. Do not reject null hypothesis
B. Reject null hypothesis
C. Not enough information to reach a decision
Homework Answers
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The following two-way contingency table shows gender and opinion
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