OrderedBeforeAbsoluteRanksSign RankTreatmentValues ofDifferences91073856795647399A researcher is conducting a study on the palliative care patients at a specific facilityto determine how their chronic pain symptoms change after entering the palliativecare environment, in order to determine the effectiveness of the standardizedtreatment protocol for patients entering into the palliative care environment. To dothis the researcher is comparing the pain scores of individuals before treatment andafter treatment. Set up a Wilcoxon signed-ranks test and interpret it at the alphaequals .05 level.We reject Ho in favor of H₁, which states that the median difference in the painscores is not zero because the test statistic value of 35.5 is greater than thecritical value 11.We fail to reject Ho, which states the median difference in the pain scores is zerobecause 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 painscores is not zero because the test statistic value of 9.5 is less than the criticalvalue 11We fail to reject Ho, which states the median difference in the pain scores is zerobecause the test static value of 9.5 is less than the critical value of 11.Patient12345678AfterValue ofTreatment Differences45

Wilcoxon test is a non parametric test.

Answered: A researcher is conducting a study on…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A 2x2 experiment looks at how obesity and hunger affect the amount of food people eat. The results are shown below. n=10 participants per condition. Additional info if needed: N=40, G=120, ∑?2=640∑x2=640 please conduct a twoway ANOVA and draw conclusions about the main effects and interaction of obesity and hunger on food intake. Obesity (Factor B) B1 (Obese) B2 (normal weight) Hunger A1 (not hungry) M=4 SS=50 M=1 SS=30 Factor A A2 (hungry) M=5 SS=60 M=2 SS=40
You are a medical researcher that wants to determine if your new drug can lower people's blood pressure. You recruit 60 participants with high blood pressure to be part of your study. You randomly assign participants to one of three groups to receive either 10 mg of your drug, 5 mg, or 0 mg (given as a placebo control). After 2 weeks, participants' blood pressure is measured and you compare among the 3 groups. Which statistical test would be best to determine if there is a significant difference in blood pressure among the three groups?
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