The null hypothesis of the Wald-Wolfowitz runs test is the elements do not occur randomly.
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Q4: The Kruskal-Wallis test is always a _-tailed
Q5: If we wish to compare central tendencies
Q6: The Wilcoxon rank-sum test is used as
Q7: Parametric tests typically assume the underlying population
Q8: Parametric tests are distribution-free tests.
Q10: The Wilcoxon signed-rank test for a population
Q11: The Kruskal-Wallis test is a nonparametric alternative
Q12: Pearson's correlation coefficient is used as the
Q13: In the Wald-Wolfowitz test a _ is
Q14: The sign test for a matched-pairs sample
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