Part1. Chi-Square Test of Independence. Given the following contingency table, conduct a Chi-square test of independence....
Part1.
Chi-Square Test of Independence. Given the following contingency table, conduct a Chi-square test of independence. What is the overall count (i.e. sample size)?
|
Category 1 |
||||
|
Category 2 |
1 |
2 |
3 |
4 |
|
1 |
120 |
112 |
100 |
110 |
|
2 |
127 |
115 |
120 |
124 |
|
3 |
118 |
115 |
110 |
124 |
|
442 |
||
|
365 |
||
|
1,396 |
||
|
358 |
||
|
2,790 |
||
|
None of the above |
Part 2.
Chi-Square Test of Independence. What is the total for column 4?
|
442 |
||
|
365 |
||
|
1,396 |
||
|
358 |
||
|
None of the above |
Part 3.
Chi-Square Test of Independence. What is the total for row 3?
|
442 |
||
|
365 |
||
|
1,396 |
||
|
358 |
||
|
None of the above |
Part 4.
Chi-Square Test of Independence. What is the expected frequency for e11 and e33?
|
127.16 and 119.85 |
||
|
115.65 and 110.47 |
||
|
113.43 and 114.49 |
||
|
None of the above |
Part 5.
Chi-Square Test of Independence. What is the p-value for the Chi-square statistic?
|
0.0143 |
||
|
0.9744 |
||
|
0.5354 |
||
|
Less than 0.01 |
||
|
None of the above |
Homework Answers
Add Answer to:
Part1.
Chi-Square Test of Independence. Given the following contingency
table, conduct a Chi-square test of independence....
For a chi-square test of independence for this contingency table, what is the number of degrees of freedom?
You observe 100 randomly selected college students to find out whether they arrive on time or late for their classes. The table below gives a two-way classification for these students.GenderOn TimeLateFemale359Male4313For a chi-square test of independence for this contingency table, what is the number of degrees of freedom?
Does the data meet the conditions for the chi-square test? StatCrunch Instructions: Test of Independence Using...
Does the data meet the conditions for the chi-square test?
StatCrunch Instructions: Test of Independence Using
Technology
Next we will use StatCrunch to calculate the expected
counts:
Enter Yes and No in column var1.
Enter the observed counts as they appear in the table above
(not including the totals) into columns var2 and var3.
Rename: var1 as "911", var2 as "No Risk" and var3 as "M to S
Risk"
Choose Stat -> Tables -> Contingency -> with
summary
Select the...
What is Cramer's V for each of the following values for the chi-square test for independence?...
What is Cramer's V for each of the following values for the chi-square test for independence? (Round your answers to two decimal places.) (a) X2 = 8.81, n = 110, dfsmaller = 2 V = (b) X2 = 4.15, n = 50, dfsmaller = 1 V = (c) X2 = 12.73, n = 150, dfsmaller = 3 V =
What is Cramer's V for each of the following values for the chi-square test for independence?...
What is Cramer's V for each of the following values for the chi-square test for independence? (Round your answers to two decimal places.) (a) X2 = 9.71, n = 110, dfsmaller = 2 V = (b) X2 = 3.17, n = 50, dfsmaller = 1 V = (c) X2 = 11.71, n = 160, dfsmaller = 3 V =
What is Cramer's V for each of the following values for the chi-square test for independence?...
What is Cramer's V for each of the following values for the chi-square test for independence? (Round your answers to two decimal places.) (a) X2 = 9.44, n = 110, dfsmaller = 2 V = (b) X2 = 3.47, n = 60, dfsmaller = 1 V = (c) X2 = 12.47, n = 190, dfsmaller = 3 V =
CH12 Q4 Given the following contingency table, conduct a test for independence at the 1% significance...
CH12 Q4
Given the following contingency table, conduct a test for independence at the 1% significance level. (You may find it useful to reference the appropriate table: chi-square table or F table) Variable A Variable B 31 34 32 58 a. Choose the null and alternative hypotheses. OH: The two variables are independent.; H: The two variables are dependent. 0 0: The two variables are dependent. ; HA: The two variables are independent. b. Calculate the value of the test...
What is the idea behind the chi-square test for independence? Select one: a. to compare the...
What is the idea behind the chi-square test for independence? Select one: a. to compare the quantile-quantile (Q-Q) plot with what would be expected under independence b. to compare the actual counts in a contingency table with what would be expected under independence c. to compare the cumulative distribution with what would be expected under independence d. none of these choices
The purpose of this activity is to gain experience conducting a chi-square test of independence using...
The purpose of this activity is to gain experience conducting a chi-square test of independence using technology. Recall the report On the Front Line: The Work of First Responders in a Post-9/11 World. We will use data from this report to investigate the question: Are alcohol-related problems among New York firefighters associated with participation in the 9/11 rescue? Here again are our observed data: No Risk for Alcohol Problems Moderate to Severe Risk for alcohol problems Participated in 911 rescue...
this is the table given Perform a chi-square independence test using the critical value approach, provided...
this is the table
given
Perform a chi-square independence test using the critical value approach, provided the conditions for using the test are met. Be sure to state the hypotheses and the significance level, to obtain the expected frequencies, to obtain the critical value, to compute the value of the test statistic, and to state your conclusion. 160 students who were majoring in either math or English were asked a test question, and the researcher recorded whether they answered the...
To perform a chi-square test of independence for this contingency table at the 196 significance level, what is the critical value of chisquare?
You observe 100 randomly selected college students to find out whether they arrive on time or late for their classes. The table below gives a two-way classification for these students.GenderOn TimeLateFemale359Male4313To perform a chi-square test of independence for this contingency table at the 196 significance level, what is the critical value of chisquare?7.8796.63510.5979.210
Does the data meet the conditions for the chi-square test?
StatCrunch Instructions: Test of Independence Using
Technology
Next we will use StatCrunch to calculate the expected
counts:
Enter Yes and No in column var1.
Enter the observed counts as they appear in the table above
(not including the totals) into columns var2 and var3.
Rename: var1 as "911", var2 as "No Risk" and var3 as "M to S
Risk"
Choose Stat -> Tables -> Contingency -> with
summary
Select the...
CH12 Q4
Given the following contingency table, conduct a test for independence at the 1% significance level. (You may find it useful to reference the appropriate table: chi-square table or F table) Variable A Variable B 31 34 32 58 a. Choose the null and alternative hypotheses. OH: The two variables are independent.; H: The two variables are dependent. 0 0: The two variables are dependent. ; HA: The two variables are independent. b. Calculate the value of the test...
this is the table
given
Perform a chi-square independence test using the critical value approach, provided the conditions for using the test are met. Be sure to state the hypotheses and the significance level, to obtain the expected frequencies, to obtain the critical value, to compute the value of the test statistic, and to state your conclusion. 160 students who were majoring in either math or English were asked a test question, and the researcher recorded whether they answered the...
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