Refer to the MegaStat/Excel Output for the Wilcoxon Rank Sum

question 62

Multiple Choice

Refer to the MegaStat/Excel output for the Wilcoxon rank sum test given in the table below.
At a significance level of .05,which one of the following rejection point conditions is correct regarding the following null hypothesis?
H₀: D₁ and D₂ are identical probability distributions.

• A)Reject H₀ if T ≥ 79 or T ≤ 131
• B)Reject H₀ if T ≥ 131 or T ≤ 83
• C)Reject H₀ if T ≥ 131 or T ≤ 79
• D)Reject H₀ if T ≤ 83 or T ≥ 127
• E)Reject H₀ if T ≤ 79 or T ≥ 127

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Definitions:

True Probability

The actual likelihood of an event occurring, often contrasted with estimated probabilities derived from models or assumptions.

Subjective Probabilities

The individual's personal judgment or estimate of the likelihood of an event occurring, based on their own knowledge and experience.

Event

An occurrence or happening, especially one of significance.

Law of Small Numbers

A cognitive bias that leads people to make unjustified conclusions based on limited data.