1. Statistics PSY302 Quiz Chapters 16 & 17

2. 1. One group of Alzheimer’s patients was taught using visuals and another visuals plus intense verbal refusal. To see if there is a difference between the groups we would use which t-test?
Matched pairs
Independent sample unequal variances assumed

3. 1. One group of Alzheimer’s patients was taught using visuals and another visuals plus intense verbal refusal. To see if there is a difference between the groups we would use which t-test?
Matched pairs
Independent sample unequal variances assumed

4. 2. For the dataset women in the workforce we want to see if the number of women in the work force changed from 1968 to What type of t-test is this?
Matched pairs
Independent sample unequal variances assumed

5. 2. For the dataset women in the workforce we want to see if the number of women in the work force changed from 1968 to What type of t-test is this?
Matched pairs
Independent sample unequal variances assumed

6. 3. The correct p-value for this output is:
.012
-2.45
.024
.493 18

7. 3. The correct p-value for this output is:
.012
-2.45
.024
.493 18

8. 4. A researcher in Turkey compared online with face-to-face courses in teaching Boy and Girl Scouts. This would be an example of
Matched pairs
Independent sample unequal variances assumed

9. 4. A researcher in Turkey compared online with face-to-face courses in teaching Boy and Girl Scouts. This would be an example of
Matched pairs
Independent sample unequal variances assumed

10. 5. Dr. Wattles wants to see which PSY302 test was more difficult
5. Dr. Wattles wants to see which PSY302 test was more difficult. He should use a _______ test.
Matched pairs
Independent sample unequal variances assumed

11. 5. Dr. Wattles wants to see which PSY302 test was more difficult
5. Dr. Wattles wants to see which PSY302 test was more difficult. He should use a _______ test.
Matched pairs
Independent sample unequal variances assumed

12. 6. Do these data show that Exam 3 was easier than exam 2?
yes no

13. 6. Do these data show that Exam 3 was easier than exam 2?
yes no

14. 7. The proper T distribution is decided by:
The P-value
The significance level
The confidence interval
Degrees of freedom
Square root of N.

15. 7. The proper T distribution is decided by:
The P-value
The significance level
The confidence interval
Degrees of freedom
Square root of N.

16. 8. Joseph is comparing how many yards plyers gain on turf versus on grass. Which t-test should he use?
Matched pairs
Independent sample unequal variances assumed

17. 8. Joseph is comparing how many yards plyers gain on turf versus on grass. Which t-test should he use?
Matched pairs
Independent sample unequal variances assumed

18. 9. Do these data show if the average score on music is different from that for flower. This would be a _____ hypothesis.
One-tail
Two-tail
Both of the above
Neither of the above

19. 9. Do these data show if the average score on music is different from that for flower. This would be a _____ hypothesis.
One-tail
Two-tail
Both of the above
Neither of the above

20. 10. A t-test comparing flower trvia to music trivia would require a _____t-test.
Matched Pairs
One-sample
Independent Samples

21. 10. A t-test comparing flower trvia to music trivia would require a _____t-test.
Matched Pairs
One-sample
Independent Samples

22. Bonus. Degrees of freedom is determined by:
The variance
Sample size
The square root of n
T distribution
The null hypothesis

23. Bonus. Degrees of freedom is determined by:
The variance
Sample size
The square root of n
T distribution
The null hypothesis

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

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

26. Bonus 3. What is the effect size (Cohen’s D) for this study?
.012
-2.45
.48
.493 18

27. Bonus 3. What is the effect size (Cohen’s D) for this study?
.012
-2.45
.48
.493 18

28. The End