1. Statistics PSY302 Quiz Chapters 16 & 17

2. 1. Alpha α is also known as: A.The null hypopthesis B.Chi Square C.The significance level D.The Analysis of Variance E.B and D

3. 1. Alpha α is also known as: A.The null hypopthesis B.Chi Square C.The significance level D.The Analysis of Variance E.B and D

4. 2. The ____ tells us the likelihood of getting a value as high as the test statistic by chance. null hypothesis margin of error P-value sampling distribution confidence interval

5. 2. The ____ tells us the likelihood of getting a value as high as the test statistic by chance. null hypothesis margin of error P-value sampling distribution confidence interval

6. 3. It the p-value is ______, then we say the data are statistically significant. Equal to the mean as small as or smaller than α Greater than the obtained statistic Larger than alpha greater than.05

7. 3. It the p-value is ______, then we say the data are statistically significant. Equal to the mean as small as or smaller than α Greater than the obtained statistic Larger than alpha greater than.05

8. 4. Which of the following graphs could be a t- distribution? a)Plot A b)Plot B c)Plot C

9. Which of the following graphs could be a t- distribution? a)Plot A b)Plot B c)Plot C

10. 4. We use t scores when: 1.We want to talk about values rather than a claim about the relationship 2.We want to predict the value 3.The population standard deviation is unknown 4.We are concerned about chance 5.We have categorical data

11. 4. We use t scores when: 1.We want to talk about values rather than a claim about the relationship 2.We want to predict the value 3.The population standard deviation is unknown 4.We are concerned about chance 5.We have categorical data

12. 5. The proper T distribution is decided by: 1.The P-value 2.The significance level 3.The confidence interval 4.Degrees of freedom 5.Square root of N.

13. 5. The proper T distribution is decided by: 1.The P-value 2.The significance level 3.The confidence interval 4.Degrees of freedom 5.Square root of N.

14. 6. To compare the responses to the two treatments in _____ design, apply the one-sample t procedures to the observed differences. 1.P-value 2.significance level 3.confidence interval 4.Degrees of freedom 5.Matched pairs

15. 6. To compare the responses to the two treatments in _____ design, apply the one-sample t procedures to the observed differences. 1.P-value 2.significance level 3.confidence interval 4.Degrees of freedom 5.Matched pairs

16. 7. Do these data show if the average score on music is different from that for flower. This would be a _____ hypothesis. A.One-tail B.Two-tail C.Both of the above D.Neither of the above

17. 7. Do these data show if the average score on music is different from that for flower. This would be a _____ hypothesis. A.One-tail B.Two-tail C.Both of the above D.Neither of the above

18. 8. A t-test comparing flower trvia to music trivia would require a _____t-test. A.Matched Pairs B.One-sample C.Independent Samples

19. 8. A t-test comparing flower trvia to music trivia would require a _____t-test. A.Matched Pairs B.One-sample C.Independent Samples

20. 9. A Z score of.50 means 1.50 points above the average of the sample 2.Way, way above average 3.One half a standard deviation above the mean 4.All of the above

21. 9. A Z score of.50 means 1.50 points above the average of the sample 2.Way, way above average 3.One half a standard deviation above the mean 4.All of the above

22. 10. Degrees of freedom is determined by: 1.The variance 2.Sample size 3.The square root of n 4.T distribution 5.The null hypothesis

23. 10. Degrees of freedom is determined by: 1.The variance 2.Sample size 3.The square root of n 4.T distribution 5.The null hypothesis

24. Bonus: To these data show that students score higher on one quiz than the other? A.Yes B.No C.Can’t say

25. Bonus: To these data show that students score higher on one quiz than the other? A.Yes B.No C.Can’t say