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Topic:
Why Are Nonparametric Procedures Necessary?
Essay Instructions:
Some researchers do not believe nonparametric procedures are robust enough to yield reliable results. This may hold true if a sample is small or variances between groups are unequal. But does that make the procedures themselves unreliable, or are they simply as reliable as the data themselves?
For this discussion, consider a small, hypothetical quantitative case study, and develop an original response as follows:
Describe the hypothetical study, and name two variables to compare or correlate.
Propose a sample size. Which nonparametric statistical procedures would you apply and why?
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Why Are Nonparametric Procedures Necessary?
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Why Are Nonparametric Procedures Necessary?
The selected hypothetical case study involves male and female patients in inpatient care. In this situation, a researcher wants to investigate the duration of hospitalization between the admitted males and females. An analysis and histogram display of the data for the two groups reveals that the female’s data has a significant right skew with a mean of 58 days and a 29.5 median. However, the male distribution appears slightly symmetric and has a mean of 32.6, while the median is 31.2. As a result, when comparing the mean between the two groups, the researcher will use a nonparametric test rather than a parametric one.
The proposed sample size is that the data contains 20 male and 22 female patients. Using a Mann-Whitney U appro...
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