Which of the Following Is a Valid Null Hypothesis

question 25

Multiple Choice

Which of the following is a valid null hypothesis?

• A) p > 1/8
• B) μ < 98
• C) The mean of population A is not equal to the mean of population B
• D) mu = 110

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Definitions:

Mann-Whitney U

A nonparametric test that compares differences between two independent groups on a single, continuous variable.

Wilcoxon Rank

The Wilcoxon Rank Sum Test or Wilcoxon Signed Rank Test is a non-parametric statistical hypothesis test used to compare two paired samples to assess whether their population mean ranks differ.

Critical Value

The value resulting from application of a statistical test that is necessary for rejection (or nonacceptance) of the null hypothesis.