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05.05.2020 •
Mathematics
You interview 75 students in their freshmen year and again in their senior year. Each interview includes information about height and weight, allowing the computation of each student's body mass index, BMI. You wish to assess whether there has been a significant change from freshmen to senior year in their BMIs. Select the best method to use to assess whether there has been a significant change from freshmen to senior year in their BMIs.
Select the best method to use to assess whether there has been a significant change from freshmen to senior year in their BMIS.
a. two-way ANOVA test
b. Wilcoxon rank sum test
c. Kruskal-Wallis test
d. Wilcoxon signed rank test
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Ответ:
Option D is correct, Wilcoxon signed rank test
Step-by-step explanation:
This will be a dependent sample because same students are being surveyed. Hence,
We should use Wilcoxon signed rank test (which is a non-parametric statistical hypothesis test utilized to evaluate two related or connected samples, matched samples, or repetitive measurements on a lone sample to evaluate whether their population mean ranks differ.)
Option D is correct. Wilcoxon signed rank test.
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