A researcher is conducting a study on the palliative care patients at a specific facility to determine how their chronic pain symptoms change after entering the palliative care environment, in order to determine the effectiveness of the standardized treatment protocol for patients entering into the palliative care environment. To do this the researcher is comparing the pain scores of individuals before treatment and

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Question
Ordered
Before
Absolute
Ranks
Sign Rank
Treatment
Values of
Differences
9
10
7
3
8
5
6
7
9
5
6
4
7
3
9
9
A researcher is conducting a study on the palliative care patients at a specific facility
to determine how their chronic pain symptoms change after entering the palliative
care environment, in order to determine the effectiveness of the standardized
treatment protocol for patients entering into the palliative care environment. To do
this the researcher is comparing the pain scores of individuals before treatment and
after treatment. Set up a Wilcoxon signed-ranks test and interpret it at the alpha
equals .05 level.
We reject Ho in favor of H₁, which states that the median difference in the pain
scores is not zero because the test statistic value of 35.5 is greater than the
critical value 11.
We fail to reject Ho, which states the median difference in the pain scores is zero
because the test static value of 35.5 is greater than the critical value of 11.
We reject Ho in favor of H₁, which states that the median difference in the pain
scores is not zero because the test statistic value of 9.5 is less than the critical
value 11
We fail to reject Ho, which states the median difference in the pain scores is zero
because the test static value of 9.5 is less than the critical value of 11.
Patient
1
2
3
4
5
6
7
8
After
Value of
Treatment Differences
4
5
Transcribed Image Text:Ordered Before Absolute Ranks Sign Rank Treatment Values of Differences 9 10 7 3 8 5 6 7 9 5 6 4 7 3 9 9 A researcher is conducting a study on the palliative care patients at a specific facility to determine how their chronic pain symptoms change after entering the palliative care environment, in order to determine the effectiveness of the standardized treatment protocol for patients entering into the palliative care environment. To do this the researcher is comparing the pain scores of individuals before treatment and after treatment. Set up a Wilcoxon signed-ranks test and interpret it at the alpha equals .05 level. We reject Ho in favor of H₁, which states that the median difference in the pain scores is not zero because the test statistic value of 35.5 is greater than the critical value 11. We fail to reject Ho, which states the median difference in the pain scores is zero because the test static value of 35.5 is greater than the critical value of 11. We reject Ho in favor of H₁, which states that the median difference in the pain scores is not zero because the test statistic value of 9.5 is less than the critical value 11 We fail to reject Ho, which states the median difference in the pain scores is zero because the test static value of 9.5 is less than the critical value of 11. Patient 1 2 3 4 5 6 7 8 After Value of Treatment Differences 4 5
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