Statistics PSY302 Quiz Chapters 16 & 17
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
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
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 1972. What type of t-test is this? Matched pairs Independent sample unequal variances assumed
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 1972. What type of t-test is this? Matched pairs Independent sample unequal variances assumed
3. The correct p-value for this output is: .012 -2.45 .024 .493 18
3. The correct p-value for this output is: .012 -2.45 .024 .493 18
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
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
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
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
6. Do these data show that Exam 3 was easier than exam 2? yes no
6. Do these data show that Exam 3 was easier than exam 2? yes no
7. The proper T distribution is decided by: The P-value The significance level The confidence interval Degrees of freedom Square root of N.
7. The proper T distribution is decided by: The P-value The significance level The confidence interval Degrees of freedom Square root of N.
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
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
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
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
10. A t-test comparing flower trvia to music trivia would require a _____t-test. Matched Pairs One-sample Independent Samples
10. A t-test comparing flower trvia to music trivia would require a _____t-test. Matched Pairs One-sample Independent Samples
Bonus. Degrees of freedom is determined by: The variance Sample size The square root of n T distribution The null hypothesis
Bonus. Degrees of freedom is determined by: The variance Sample size The square root of n T distribution The null hypothesis
Bonus: To these data show that students score higher on one quiz than the other? Yes No Can’t say
Bonus: To these data show that students score higher on one quiz than the other? Yes No Can’t say
Bonus 3. What is the effect size (Cohen’s D) for this study? .012 -2.45 .48 .493 18
Bonus 3. What is the effect size (Cohen’s D) for this study? .012 -2.45 .48 .493 18
The End