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

question 33

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 statements is correct regarding the following null hypothesis? H₀: D₁ and D₂ are identical probability distributions.

• A) We reject H₀ and conclude there is very strong evidence that the median value of the first sample significantly differs from the median value of the second sample.
• B) We reject H₀ and conclude there is very strong evidence that the median value of the first sample is significantly less than the median value of the second sample.
• C) We do not reject H₀ and conclude there is not sufficient evidence that the median value of the first sample is significantly less than the median value of the second sample.
• D) We do not reject H₀ and conclude there is insufficient evidence to conclude that the median value of the first sample is not significantly different from the median value of the second sample.
• E) We do not reject H₀ and conclude there is very strong evidence that the median value of the first sample is significantly greater than the median value of the second sample.

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Definitions:

Physiological Needs

Basic physical requirements for human survival, such as food, water, and shelter, as identified in Maslow's hierarchy of needs.

Behavior Psychology

A field of psychology focused on studying and understanding observable behaviors and the processes that underlie them.

John B. Watson

An American psychologist and one of the founders of behaviorism, emphasizing the importance of observable behavior over internal mental processes.

Behaviorism

A theory of learning which states that all behaviors are acquired through conditioning, emphasizing the role of environmental factors in shaping behavior.