Using the Following Data, the Wilcoxon Signed-Rank Hypothesis Test Is

question 37

Multiple Choice

Using the following data, the Wilcoxon signed-rank hypothesis test is used to test the hypothesis that the test results of a treatment after training are greater than the test results before the treatment. The Wilcoxon critical value is 3 for n = 7 with a 0.05 significance level. What decision should be made regarding the null hypothesis?

• A) Reject the null hypothesis and conclude that the "after" is greater than "before."
• B) Reject the null hypothesis and conclude that the "before" is greater than "after."
• C) Fail to reject the null hypothesis.
• D) Reject the null hypothesis and conclude that there is no difference between the "before." and "after."

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Definitions:

Action Potential

A rapid, temporary change in a cell's membrane potential, allowing for the transmission of nerve impulses.

Absolute Refractory

The absolute refractory period is a time during which a nerve or muscle is incapable of responding to stimulation, immediately following an action potential.

Action Potentials

Rapid, short-lasting events where the electrical membrane potential of a cell rapidly rises and falls, typical in neurons and muscle cells during signal transmission.

Period

A length or span of time; in grammar, it is a punctuation mark used to denote the end of a sentence.