In a Wilcoxon Rank Sum Test, the Two Sample Sizes $\alpha = 005$

question 96

Multiple Choice

In a Wilcoxon rank sum test, the two sample sizes are 6 and 6, and the value of the Wilcoxon test statistic is T = 20. If the test is two-tailed and the level of significance is $\alpha = 005$ , 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) not enough information has been given to answer this question.

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Definitions:

Millivolts

A unit of electric potential equal to one thousandth of a volt.

Relative Refractory Period

A phase following immediate action where a neuron is less responsive to stimulation and requires a stronger than normal impulse to activate.

Sodium

A chemical element (Na) that is a highly reactive metal and an essential nutrient for human health, particularly in nerve function and fluid balance.

Action Potentials

Short-lasting events in which the electrical membrane potential of a cell rapidly rises and falls.