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A common situation faced by researchers working with special populations, such as neurologically impaired people or people with less common psychiatric conditions, is that the studies often have small sample sizes due to the relatively few numbers of patients. As a result, these researchers often turn to nonparametric statistical tests. For each of the following research descriptions, state which nonparametric hypothesis test is most appropriate: Spearman rank-order correla - tion coefficient, Wilcoxon signed-rank test, Mann- Whitney U test, or Kruskal-Wallis H test. Explain your answers.
a. People who have had a stroke often have whole or partial paralysis on the side of their body opposite the side of the brain damage. Leung, Ng, and Fong (2009) were interested in the effects of a treatment program for constrained movement on the recovery from paralysis. They compared the arm-movement ability of eight stroke patients before and after the treatment.
b. Leung and colleagues (2009) were also interested in whether the amount of improvement after the therapy was related to the number of months that had passed since the patient experienced the stroke.
c. Five of Leung and colleagues' (2009) patients were male and three were female. We could ask whether post-treatment movement performance was different between men and women.
Researchers at the University of Toronto conducted a series of experiments to investigate whether a commercially sold pet food could serve as a substitute diet for baby snow geese (Journal of Applied Ecology,Vol.32. 1995).
To forcast the sample size within 0.02 with 90 percent confidence. The CEO of the organization needs to forcast the proportion of Canadians who own their house.
a poker hand consists of 5 cards chosen randomly from a standard 52 card deck.a find the chance that you are dealt a
Patients with a cardio logical illness and less than normal heart muscle strength can benefit from an assistance device. An electric ventricular assist device (EVAD) converts electric power into blood flow by moving a pusher plate against a flexib..
A publisher reports that 74% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage.
in one trip of a cruise ship 341 of the 3745 passengers became ill with norovirus. at about the same time 260 of the
fx k1-1x2 1 ? x lt 2 is the distribution function for a continuous random variable x. solve for the value of k and
Translate the following statements into symbolic form using capital letters to represent affirmative English statements.- African safaris are amazing, but they are also expensive.
objectives1. introduce some basic library search tools2. demonstrate the relevance of statistics in this case
the amounts a soft drink machiene is designed to dispense for each drink are normally distributed with a mean of 12.2
The average annual salary in Pennsylvania was $24,393. Assume that the salaries were normally distributed for this group of wage earners, and the standard deviation for this group was $4,362. Using this information, please respond to the following..
1 suppose that 5 of cereal boxes contain a prize and the other 95 contain the message sorry try again. if a person
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