In Testing the Difference Between Two Population Means Using Two

question 108

Multiple Choice

In testing the difference between two population means using two independent samples, the population standard deviations are assumed to be known and the calculated test statistic equals 2.56. If the test is two-tail and 5% level of significance has been specified, the conclusion should be to:

• A) reject the null hypothesis
• B) not to reject the null hypothesis
• C) repeat using a one-tail test
• D) choose two other independent samples
• E) none of these

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Definitions:

Superego

The part of the personality in Freudian psychoanalytic theory that represents internalized ideals and provides standards for judgment.

Conflict

A struggle or clash between opposing forces, ideas, interests, or individuals.

Defense Mechanism

Psychological strategies brought into play by individuals, variously to cope with reality, to maintain self-image, or to avoid emotional distress.

Projection

A defense mechanism where individuals attribute their own unacceptable thoughts, feelings, or motives to someone else.