EDUC 812 Quiz Chi-Square

EDUC 812 Quiz Chi-Square

Covers the Textbook material from Module 5: Week 5.

1. A church group wanted to know the most popular snack at the Wednesday night service. They wanted to see how many males and females preferred cookies over brownies. The design was a 2×2 contingency table. The total number of participants was 45. Chi Squared analysis revealed a test statistic of 1.93 and a p-value of 0.32. What is the proper way to report the statistical statement?
2. Nurses at Lynchburg General plan to implement a new training program for nursing aids to deal with stress. To test the effectiveness of the training program, a 2×2 design was used. The nurses reported the following statistical statement: χ2(1, N = 12) = 2.71, p = .62. They concluded that
3. The career center at Liberty University wanted to see which students utilized the job fair. They wanted to see if class level (Freshman or Senior) had an impact on attendance at the job fair (attended or did not attend). What would the degrees of freedom (df) be for this contingency table?
4. The degrees of freedom (df) for a 2×3 chi square table is _______.
5. Contingent means “related to” or “predictable from.”
6. Expected frequency should be not less than 5 for each cell.
7. For Cramer’s V, values close to 1 indicate a strong association.
8. In a Chi squared (χ2) the variables are _________
9. Volk wanted to see if there was a signicant association between in the number of college students by grade level (Freshman, Sophomore, Junior, and Senior) who go home for Thanksgiving. Which statistical test would be the best choice to analyze his data set?
10. Indexes such as φ or Cramer’s V can be used to evaluate whether effect size is small, medium, or large.
11. The UCLA biomedical lab is running a Chi Squared analysis and have set their significance at 95%. Based on the following statistical statement, χ2(1, N = 72) = 8.85, p < .001, the researchers should fail to reject the null.
12. The Chi Squared (χ2) has a minimum possible value of 0 and a maximum possible value of 100.
13. Researchers reported a Cramer’s V of .64 and concluded that the effect size was
14. Based on the following statistical statement, χ2 (4, N = 80) = 10.53, p = .04, the researchers should
15. For Cramer’s V, values close to 0 indicate a strong association.
16. What is the sample size in the follow statistical statement χ2 (2, N = 67) = 6.72, p = .021?
17. denotes the observed number of persons in each cell, whereas _____ denotes the expected number of persons in each cell.
18. is the probability of an outcome on one variable (e.g., survival vs. death) given a score for another variable (e.g., whether the person owns a dog or not), whereas, ____________ is the overall probability of some outcome (such as survival vs. death) for the entire sample, ignoring membership on any other categorical variables.
19. Based on the following statistical statement, χ2(3, N = 100) = 3.26, p = .14, is there a significant association?
20. Based on the following statistical statement, χ2(4, N = 148) = 11.76, p = .02, is there a significant association?
21. If a researcher found a Cramer’s V effect size of 0.310 what would you report about the effect size?
22. What is the Chi squared (χ2) statistic in the follow statistical statement χ2 (2, N = 67) = 6.72, p = .021?
23. Based on the following statistical statement, χ2(1, N = 92) = 4.52, p = .03, is there a signicant association?
24. The degrees of freedom (df) for a 4×4 chi square contingency table is
25. What is the degrees of freedom (df) formula for a Chi Square test for Independence analysis?

Set 2

1. The career center at Liberty University wanted to see which students utilized the job fair. They wanted to see if class level (Freshman or Senior) had an impact on attendance at the job fair (attended or did not attend). What would the degrees of freedom (df) be for this contingency table?
2. Based on the following statistical statement, χ2(4, N = 148) = 11.76, p = .02, is there a signicant association?
3. Based on the following statistical statement, χ2 (4, N = 80) = 10.53, p = .04, the researchers should
4. A church group wanted to know the most popular snack at the Wednesday night service. They wanted to see how many males and females preferred cookies over brownies. The design was a 2×2 contingency table. The total number of participants was 45. Chi Squared analysis revealed a test statistic of 1.93 and a p-value of 0.32. What is the proper way to report the statistical statement?
5. Volk wanted to see if there was a signicant association between in the number of college students by grade level (Freshman, Sophomore, Junior, and Senior) who go home for Thanksgiving. Which statistical test would be the best choice to analyze his data set?
6. Contingent means “related to” or “predictable from.”
7. Based on the following statistical statement, χ2(1, N = 92) = 4.52, p = .03, is there a signicant association?
8. What is the sample size in the follow statistical statement χ2 (2, N = 67) = 6.72, p = .021?
9. What is the Chi squared (χ2) statistic in the follow statistical statement χ2 (2, N = 67) = 6.72, p = .021?
10. In a Chi squared (χ2) the variables are _________
11. The degrees of freedom (df) for a 4×4 chi square contingency table is
12. denotes the observed number of persons in each cell, whereas _____ denotes the expected number of persons in each cell.
13. For Cramer’s V, values close to 1 indicate a strong association.
14. Nurses at Lynchburg General plan to implement a new training program for nursing aids to deal with stress. To test the effectiveness of the training program, a 2×2 design was used. The nurses reported the following statistical statement: χ2(1, N = 12) = 2.71, p = .52. They concluded that
15. For Cramer’s V, values close to 0 indicate a strong association.
16. Researchers reported a Cramer’s V of .64 and concluded that the effect size was
17. The UCLA biomedical lab is running a Chi Squared analysis and have set their signicance at 95%. Based on the following statistical statement, χ2(1, N = 72) = 8.85, p < .001, the researchers should fail to reject the null.
18. What is the degrees of freedom (df) formula for a Chi Square test for Independence analysis?
19. Based on the following statistical statement, χ2(3, N = 100) = 3.26, p = .14, is there a signicant association?
20. If a researcher found a Cramer’s V effect size of 0.310 what would you report about the effect size?
21. The Chi Squared (χ2) has a minimum possible value of 0 and a maximum possible value of 100.
22. Typically, values of Cramer’s V range from 0 to 1.
23. What is the degrees of freedom in the follow statistical statement χ2 (2, N = 67) = 6.72, p = .021?
24. The Liberty University nursing department is running a Chi Squared analysis and have set their signicance at 95%. Based on the following statistical statement, χ2(3, N = 248) = 4.37, p = .51, the researchers should fail to reject the null.
25. Expected frequency should be not less than 5 for each cell.