An experiment was conducted to determine the effect of exercises on elders' (above 60 years old) memory. Two groups of elders wereanalyzed. One group was treated with no exercise, while the other group was treated with 20 mínutes of the same exercise daily. Gíven non-normally distributed data, which non-parametric test is the most appropriate?{Satu eksperimen telah dijalankan untuk menentukan kesan senaman terhadap daya ingatan warga emas (umur 60 tahun ke atas). Dua kumpulantelah dianalisa. Satu kumpulan tidak menjalani sebarang jenis senaman manakala satu lagi kumpulan menjalani senaman yang sama setiap hariselama 20 minit sehari. jika data tidak bertaburan normal, ujian tidak berparameter yang manakah yang paling sesuai?}O a.Mann-Whitney U test[Ujian Mann-Whitney U}Ob.Friedman K test[Ujian Friedman K)OC.Kruskal-Wallis H test[Ujian H Kruskal-Wallis}d.Wilcoxon signed-rank test[Ujian pangkat-bertanda Wilcoxon}

Test is that whether there is an effect of exercises on elder's memory. It is given that there are…

Answered: An experiment was conducted to…

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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UBC coaching center has two branches in Dhaka: one in Dhanmondi (Branch A) and another one in Mohammadpur (Branch B). To understand their students' performance, the coaching center conducts the same test in both branches. A sample of 8 students have been selected from branches A and B respectively, and the following table shows data on their performance. Use appropriate non-parametric methods on the data to find out whether there is a statistically significant correlation between the ranks of the students’ performance of the two branches. Branch A 25 35 45 35 25 40 39 48 Branch B 46 43 64 39 42 41 31 40
suggest a statistical tool given that sample size is 40, and non parametric significant difference between the set of factors identified by the 3rd year management students that would affect their choice of a minor degree and the set of factors identified by the 4th year management students that affected their choice of a minor degree
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A small pilot study is run to compare a new drug for chronic pain to one that is currently available. Participants are randomly assigned to receive either the new drug or the currently available drug and to report improvement in pain on a 5-point ordinal scare: 1= pain is much worse,2=pain is slightly worse,3=no change,4=pain improved slightly,5= pain much improved.Is there a significance difference in self reported improvement in pain? Use the Mann-Whitney U test with a 5% level of significance. New Drug: 4 5 3 3 4 2 Standard Drug: 2 3 4 1 2 3
Relatively minor repetitive impacts to the head such as those experienced by elite male soccer players when hit-ting a soccer ball with their heads may cause brain dam-age, according to the Journal of the American Medical Association. One indicator of mild brain injury is calledradial diffusivity. The radial diffusivity measurements oftwelve right-handed male soccer players were comparedto those of eleven competitive swimmers (who are notlikely to have repeated head impacts). Which type of plotwould not be appropriate for assessing the differencebetween the two groups?A) Stacked dotplots, one for each group, on the sameaxisB) Side-by-side boxplotsC) Stacked bar graphsD) A back-to-back stem-and-leaf plotE) A pair of histograms, one above the other, on the sameaxis. www.medpagetoday.com/Neurology
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first group was set up to be “right” in its eyewitness accounts and the second group was set up to be“wrong”; the desire was to see if confidence differed across groups. Thirty-four participants wererecruited from a college campus and randomly divided into two groups, both of which were shown avideo of a crime scenario (length: 58 seconds) in which the perpetrator’s facial characteristics (withrespect to the camera) were clearly visible at two separate points and sporadically visible at others. Halfthe participants then were shown a five-individual lineup that contained the perpetrator in the video(“Group A”), and half the participants were shown a five-individual lineup that did not contain theperpetrator (“Group B”). Participants were asked to (a) identify if and where the perpetrator was in thelineup and (b) provide a rating of confidence on a scale from 1 to 10 (10 being highly confident) that theselection was the same as the person seen in the video committing the crime. All…

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