Asked by Muhammad Nur Hafiz Yusoff Khalid on May 19, 2024
Verified
In a Kruskal-Wallis test for comparing three populations, the test statistic is calculated as H = 2.80. If the test is conducted at the 5% significance level, then:
A) the null hypothesis will be rejected
B) the null hypothesis will not be rejected
C) the alternative hypothesis will not be rejected
D) the test results are inconclusive
E) the t-test for matched pairs must be used
Kruskal-Wallis Test
A non-parametric method used for comparing more than two samples that are independent, or not related.
Null Hypothesis
A statement that there is no difference or effect, typically to be tested against an alternative hypothesis proposing a difference or effect.
Significance Level
The probability of rejecting the null hypothesis when it is actually true; a threshold chosen by the researcher to indicate the level of evidence needed to reject the null hypothesis.
- Familiarize with the process of calculating test statistics and p-values in nonparametric tests.
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Learning Objectives
- Familiarize with the process of calculating test statistics and p-values in nonparametric tests.
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