Compute by hand Do not use excel, google etc. and upload your work 1-Compute a T-test for dependent means to analyze if there is a difference in their income pre and post receiving their masters degree. Total number Pre X Masters Post Y Masters X2 Y2 XY 1 14 22 196 484 308 2 24 24 576 576 576 3 35 44 1225 1936 1540 4 57 59 3249 3481 3363 5 35 30 1225 900 1050 6 34 67 1156 4489 2278 7 88 95 7744 9025 8360 8 57 65 3249 4225 3705 Total 8 344 406 18620 25116 21180 Total Divide 8 43 50.75 2327.5 3139.5 2647.5 How would you interpret: t(12) = 0.12, p >.05? What is the difference between a test of independent means and a test dependent means, and when is each appropriate? In the following examples indicate whether you would perform a t-test of independent means or dependent means. Two groups were exposed to different levels of treatment for ankle sprains. Which treatment was most effective? A researcher in nursing wanted to know if the recovery of patients was quicker when some received additional in home care whereas others received the standard amount. A group of adolescent boys was offered interpersonal skills counseling and then tested in September and May to see if there was any impact on family harmony. One group of cult men was given instructions in reducing their high blood pressure whereas another was not given any instructions. One group of men was provided access to an exercise program and tested two times over a 6-month period for heart health.
Compute by hand Do not use excel, google etc. and upload your work
1-Compute a T-test for dependent means to analyze if there is a difference in their income pre and post receiving their masters degree.
|
Total number |
Pre X Masters |
Post Y Masters |
X2 |
Y2 |
XY |
|
1 |
14 |
22 |
196 |
484 |
308 |
|
2 |
24 |
24 |
576 |
576 |
576 |
|
3 |
35 |
44 |
1225 |
1936 |
1540 |
|
4 |
57 |
59 |
3249 |
3481 |
3363 |
|
5 |
35 |
30 |
1225 |
900 |
1050 |
|
6 |
34 |
67 |
1156 |
4489 |
2278 |
|
7 |
88 |
95 |
7744 |
9025 |
8360 |
|
8 |
57 |
65 |
3249 |
4225 |
3705 |
|
Total 8 |
344 |
406 |
18620 |
25116 |
21180 |
|
Total Divide 8 |
43 |
50.75 |
2327.5 |
3139.5 |
2647.5 |
How would you interpret: t(12) = 0.12, p >.05?
What is the difference between a test of independent means and a test dependent means, and when is each appropriate?
In the following examples indicate whether you would perform a t-test of independent means or dependent means.
-
Two groups were exposed to different levels of treatment for ankle sprains. Which treatment was most effective?
-
A researcher in nursing wanted to know if the recovery of patients was quicker when some received additional in home care whereas others received the standard amount.
-
A group of adolescent boys was offered interpersonal skills counseling and then tested in September and May to see if there was any impact on family harmony.
-
One group of cult men was given instructions in reducing their high blood pressure whereas another was not given any instructions.
-
One group of men was provided access to an exercise program and tested two times over a 6-month period for heart health.
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