Independent Simple Random Samples Are Taken to Test the Difference

question 8

Multiple Choice

Independent simple random samples are taken to test the difference between the means of two populations whose variances are known. The sample sizes are n₁ = 38 and n₂ = 42. The correct distribution to use is the

• A)normal distribution
• B)t distribution with 80 degrees of freedom
• C)t distribution with 79 degrees of freedom
• D)t distribution with 78 degrees of freedom

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Definitions:

Reciprocal Inhibition

Reciprocal inhibition is a principle in psychology that suggests the presence of a certain response will inhibit the occurrence of an opposite response, used therapeutically to reduce anxiety through relaxation techniques.

Symptom Substitution

A theory suggesting that if a symptom is removed without resolving the underlying cause, a new symptom will emerge to take its place.

Problem Reduction

Problem reduction is a strategy in problem-solving processes that involves breaking down a larger, often complex problem into smaller, more manageable parts to address them individually.

Joseph Wolpe

A psychiatrist who significantly contributed to the development of behavioral therapy through techniques like systematic desensitization.