hi i have 15 questions listed below that i need help with answering thanks 1 which of the follow

Name: hi i have 15 questions listed below that i need help with answering thanks 1 which of the following sets of data is most likely to produce a significant t statistic a md 10 and ss10 b md2 an 59111
Uploaded: 2023-05-13T05:52:22-08:00
Duration: 3 min 16 s
Channel: Dominador Tan
Description: hi i have 15 questions listed below that i need help with answering thanks 1 which of the following sets of data is most likely to produce a significant t statistic a md 10 and ss10 b md2 an 59111

Question

1. Which of the following sets of data is most likely to produce a significant t statistic? a. Md = 10 and SS = 10 b. Md = 2 and SS = 10 c. Md = 2 and SS = 100 d. Md = 10 and SS = 100 2. Which of the following studies uses a matched-subjects design? a. A sample of children is tested for vocabulary skills at age six and then again at age ten. b. A group of twins is tested for visual acuity on one day and then tested again the following day after receiving a drug. c. Participants are assigned to one of two treatment groups so that each participant in one group has the same IQ as a participant in the other group. d. None of the other options is a matched-subjects design. 3. What is the value for the estimated standard error for a set of n = 9 D scores with SS = 72? a. 9 b. 3 c. 72 d. 1 4. A researcher conducts a repeated-measures study comparing two treatment conditions with a sample of n = 10 participants and obtains a t statistic of t = 2.01. Which of the following is the correct decision about the null hypothesis? a. Reject the null hypothesis with either a = .05 or a = .01. b. Fail to reject the null hypothesis with either a = .05 or a = .01. c. Reject the null hypothesis with a = .05 but fail to reject with a = .01. d. Cannot determine without more information. 5. A repeated-measures experiment and a matched-subjects experiment both produce t statistics with df = 20. Which experiment used more subjects? a. Repeated measures. b. Matched subjects. c. They both used n = 40 subjects. d. They both used n = 20 subjects. 6. For which of the following situations would a repeated-measures study be appropriate? a. Compare reaction times before and after taking a pain medication. b. Compare salary levels for college graduates and those who did not graduate from college. c. Compare attitude scores for males versus females. d. Compare personality scores for individuals diagnosed with an eating disorder and those who are not diagnosed. 7. With a = .05 and a sample of n = 12 subjects in a repeated measures experiment, the two-tailed critical region for the t statistic has boundaries of a. t = 1.796 b. t = 2.201 c. t = 2.228 d. t = 1.812 8. A repeated measures study produces a sample mean difference of Md = 4.5 with SS = 2400 for a sample of n = 25 individuals. Based on this information, what is the value of Cohen's d? a. d = 4.5/100 = .045 b. d = 4.5 c. d = 4.5/10 = .45 d. d = 4.5/2 = 2.25 9. A research report describing the results from a repeated measures study states, "The data showed a significant difference between treatments, t(22) = 4.71, p < .01." From this report, you can conclude that the outcome of the hypothesis test was a. To fail to reject the null hypothesis. b. To make a type I error. c. To reject the null hypothesis. d. To make a type II error. 11. The null hypothesis for a repeated-measures test states a. The overall sample will have a mean difference of Md = 0. b. The entire population will have a mean difference of uD = 0. c. None of these. d. Each individual will have a difference score of D = 0. 12. A researcher plans to conduct a research study comparing two treatment conditions with a total of 20 scores in each treatment. Which of the following designs would require the smallest number of subjects? a. An independent-measures design. b. A repeated-measures design. c. A matched-subjects design. d. All the above would require the same number of subjects. 13. In general, what characteristics of the data (difference scores) are most likely to produce a significant t statistic for the repeated-measures hypothesis test? a. A large mean difference and large variance. b. A small mean difference and large variance. c. A large mean difference and small variance. d. A small mean difference and small variance. 14. A researcher conducts an experiment comparing two treatment conditions and obtains 20 scores in each treatment. Which design would require the smallest number of subjects? a. A matched subjects design. b. Either an independent measures or a matched subjects design. c. An independent-measures design. d. A repeated-measures design. 15. A group of participants is measured before and after a treatment in a repeated-measures study. If the treatment has a consistent effect on all of the participants, then the difference scores should show a. A large variance. b. A large mean difference. c. A small variance. d. A small mean difference.

          1. Which of the following sets of data is most likely to produce a significant t statistic?
a. Md = 10 and SS = 10
b. Md = 2 and SS = 10
c. Md = 2 and SS = 100
d. Md = 10 and SS = 100

2. Which of the following studies uses a matched-subjects design?
a. A sample of children is tested for vocabulary skills at age six and then again at age ten.
b. A group of twins is tested for visual acuity on one day and then tested again the following day after receiving a drug.
c. Participants are assigned to one of two treatment groups so that each participant in one group has the same IQ as a participant in the other group.
d. None of the other options is a matched-subjects design.

3. What is the value for the estimated standard error for a set of n = 9 D scores with SS = 72?
a. 9
b. 3
c. 72
d. 1

4. A researcher conducts a repeated-measures study comparing two treatment conditions with a sample of n = 10 participants and obtains a t statistic of t = 2.01. Which of the following is the correct decision about the null hypothesis?
a. Reject the null hypothesis with either a = .05 or a = .01.
b. Fail to reject the null hypothesis with either a = .05 or a = .01.
c. Reject the null hypothesis with a = .05 but fail to reject with a = .01.
d. Cannot determine without more information.

5. A repeated-measures experiment and a matched-subjects experiment both produce t statistics with df = 20. Which experiment used more subjects?
a. Repeated measures.
b. Matched subjects.
c. They both used n = 40 subjects.
d. They both used n = 20 subjects.

6. For which of the following situations would a repeated-measures study be appropriate?
a. Compare reaction times before and after taking a pain medication.
b. Compare salary levels for college graduates and those who did not graduate from college.
c. Compare attitude scores for males versus females.
d. Compare personality scores for individuals diagnosed with an eating disorder and those who are not diagnosed.

7. With a = .05 and a sample of n = 12 subjects in a repeated measures experiment, the two-tailed critical region for the t statistic has boundaries of
a. t = 1.796
b. t = 2.201
c. t = 2.228
d. t = 1.812

8. A repeated measures study produces a sample mean difference of Md = 4.5 with SS = 2400 for a sample of n = 25 individuals. Based on this information, what is the value of Cohen's d?
a. d = 4.5/100 = .045
b. d = 4.5
c. d = 4.5/10 = .45
d. d = 4.5/2 = 2.25

9. A research report describing the results from a repeated measures study states, "The data showed a significant difference between treatments, t(22) = 4.71, p < .01." From this report, you can conclude that the outcome of the hypothesis test was
a. To fail to reject the null hypothesis.
b. To make a type I error.
c. To reject the null hypothesis.
d. To make a type II error.

11. The null hypothesis for a repeated-measures test states
a. The overall sample will have a mean difference of Md = 0.
b. The entire population will have a mean difference of uD = 0.
c. None of these.
d. Each individual will have a difference score of D = 0.

12. A researcher plans to conduct a research study comparing two treatment conditions with a total of 20 scores in each treatment. Which of the following designs would require the smallest number of subjects?
a. An independent-measures design.
b. A repeated-measures design.
c. A matched-subjects design.
d. All the above would require the same number of subjects.

13. In general, what characteristics of the data (difference scores) are most likely to produce a significant t statistic for the repeated-measures hypothesis test?
a. A large mean difference and large variance.
b. A small mean difference and large variance.
c. A large mean difference and small variance.
d. A small mean difference and small variance.

14. A researcher conducts an experiment comparing two treatment conditions and obtains 20 scores in each treatment. Which design would require the smallest number of subjects?
a. A matched subjects design.
b. Either an independent measures or a matched subjects design.
c. An independent-measures design.
d. A repeated-measures design.

15. A group of participants is measured before and after a treatment in a repeated-measures study. If the treatment has a consistent effect on all of the participants, then the difference scores should show
a. A large variance.
b. A large mean difference.
c. A small variance.
d. A small mean difference.

Added by Luisa R.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

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Solved by Expert Dominador Tan

05/13/2023

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1. Which of the following sets of data is most likely to produce a significant t statistic? a. Md = 10 and SS = 10 b. Md = 2 and SS = 10 c. Md = 2 and SS = 100 d. Md = 10 and SS = 100 2. Which of the following studies uses a matched-subjects design? a. A sample of children is tested for vocabulary skills at age six and then again at age ten. b. A group of twins is tested for visual acuity on one day and then tested again the following day after receiving a drug. c. Participants are assigned to one of two treatment groups so that each participant in one group has the same IQ as a participant in the other group. d. None of the other options is a matched-subjects design. 3. What is the value for the estimated standard error for a set of n = 9 D scores with SS = 72? a. 9 b. 3 c. 72 d. 1 4. A researcher conducts a repeated-measures study comparing two treatment conditions with a sample of n = 10 participants and obtains a t statistic of t = 2.01. Which of the following is the correct decision about the null hypothesis? a. Reject the null hypothesis with either a = .05 or a = .01. b. Fail to reject the null hypothesis with either a = .05 or a = .01. c. Reject the null hypothesis with a = .05 but fail to reject with a = .01. d. Cannot determine without more information. 5. A repeated-measures experiment and a matched-subjects experiment both produce t statistics with df = 20. Which experiment used more subjects? a. Repeated measures. b. Matched subjects. c. They both used n = 40 subjects. d. They both used n = 20 subjects. 6. For which of the following situations would a repeated-measures study be appropriate? a. Compare reaction times before and after taking a pain medication. b. Compare salary levels for college graduates and those who did not graduate from college. c. Compare attitude scores for males versus females. d. Compare personality scores for individuals diagnosed with an eating disorder and those who are not diagnosed. 7. With a = .05 and a sample of n = 12 subjects in a repeated measures experiment, the two-tailed critical region for the t statistic has boundaries of a. t = 1.796 b. t = 2.201 c. t = 2.228 d. t = 1.812 8. A repeated measures study produces a sample mean difference of Md = 4.5 with SS = 2400 for a sample of n = 25 individuals. Based on this information, what is the value of Cohen's d? a. d = 4.5/100 = .045 b. d = 4.5 c. d = 4.5/10 = .45 d. d = 4.5/2 = 2.25 9. A research report describing the results from a repeated measures study states, "The data showed a significant difference between treatments, t(22) = 4.71, p < .01." From this report, you can conclude that the outcome of the hypothesis test was a. To fail to reject the null hypothesis. b. To make a type I error. c. To reject the null hypothesis. d. To make a type II error. 11. The null hypothesis for a repeated-measures test states a. The overall sample will have a mean difference of Md = 0. b. The entire population will have a mean difference of uD = 0. c. None of these. d. Each individual will have a difference score of D = 0. 12. A researcher plans to conduct a research study comparing two treatment conditions with a total of 20 scores in each treatment. Which of the following designs would require the smallest number of subjects? a. An independent-measures design. b. A repeated-measures design. c. A matched-subjects design. d. All the above would require the same number of subjects. 13. In general, what characteristics of the data (difference scores) are most likely to produce a significant t statistic for the repeated-measures hypothesis test? a. A large mean difference and large variance. b. A small mean difference and large variance. c. A large mean difference and small variance. d. A small mean difference and small variance. 14. A researcher conducts an experiment comparing two treatment conditions and obtains 20 scores in each treatment. Which design would require the smallest number of subjects? a. A matched subjects design. b. Either an independent measures or a matched subjects design. c. An independent-measures design. d. A repeated-measures design. 15. A group of participants is measured before and after a treatment in a repeated-measures study. If the treatment has a consistent effect on all of the participants, then the difference scores should show a. A large variance. b. A large mean difference. c. A small variance. d. A small mean difference.