Which of the Following Is True About One-Tailed and Two-Tailed

question 43

Multiple Choice

Which of the following is true about one-tailed and two-tailed tests?

• A) For standard normal and t-distributions, which have a mean of zero, lower-tail critical values are negative and upper-tail critical values are positive.
• B) For an upper one-tailed test, if the test statistic is greater than the critical value, the decision would be to fail to reject the null hypothesis.
• C) For a lower one-tailed test, if the test statistic is less than the critical value, the decision would be to fail to reject the null hypothesis.
• D) For a two-tailed test, if the test statistic is either greater than the upper critical value or less than the lower critical value, the decision would be to fail to reject the null hypothesis.

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Definitions:

Health to Use

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Defense Mechanisms

Defense mechanisms are psychological strategies used unconsciously by individuals to protect themselves from anxiety and to manage internal conflicts.

Depressed Subjects

Individuals who are undergoing or have been through significant depressive episodes, marked by persistent feelings of sadness, loss of interest, and other emotional and physical symptoms.

Favorable Self-concepts

Positive beliefs or perceptions an individual holds about themselves, reflecting aspects like self-worth and competence.