Monday

December 22, 2014

December 22, 2014

Posted by **Valeria** on Sunday, June 30, 2013 at 5:15pm.

No Treatment (X1) Treatment (X2)

22 19

18 17

27 24

20 21

23 27

26 21

27 23

22 18

24 19

22 22

The assignment (1–2 pages):

Please respond to the following questions related to the research study and data presented in the "To Prepare" section.

•

Should Martha use an independent-samples t-test or a related samples t-test? Explain your answer.

•

What are the independent and dependent variables?

•

Using the fact that Martha believes the treatment will reduce the amount of time to fall asleep, state the null and alternate hypotheses.

•

Would you use a one-tailed or two-tailed test? Explain your response.

•

What is the df?

•

Consider that a = .05. Then use Appendix B, Table 2 to determine the critical value, state the value, and how you found it.

•

Consider that tobt = 1.49. Report the statistical results using the correct format.

•

What should Martha conclude?

I am very confused, the last paper I did it all wrong. Help please

- psych statistics -
**Kuai**, Sunday, June 30, 2013 at 7:11pmdependent variable

One tail

df = 9

t = (dbar-mud)/sd/sqrt(n)

t = (2-0)/2.9439/sqrt(10)

t = 2.15

test statistic = 2.15

**Answer this Question**

**Related Questions**

statistics/psyc - Researchers are interested in the effectiveness of a ...

statistics - An engineering company believes it has developed a faster way to ...

statistics - the organizer of a television show must select 5 people to ...

statistics - a sample of 120 men and women randomly divided into 3 groups with ...

STATISTICS - From a group of 12 people, you randomly select 3 of them. Find the ...

STATISTICS - From a group of 12 people, you randomly select 3 of them. Find the ...

statistics - A researcher wants to select 6 participants from the following data...

statistics - the participants in a television quiz show are picked from a large ...

statistics - In which of the following situations would it not be appropriate to...

stats - For each of the following situations, determine: a) the null and ...