A Random Sample of Size N Has Been Selected from a Normally

question 104

Short Answer

A random sample of size n has been selected from a normally distributed population whose standard deviation is s. In estimating an interval for the population mean, the t-distribution should be used instead of the z-test if: $\begin{array}{|l|l|}\hline A&\text { \( n \geq 30 \) and \( \sigma \) is known}\\\hline B&\text {\( \sigma \) is unknown and estimated by \( s \), and the population is normal. }\\\hline C&\text { Population is normal and \( \sigma \) is known.}\\\hline D&\text {None of these choices are correct. }\\\hline \end{array}$

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Definitions:

Overgeneralization

A cognitive distortion where an individual concludes a general rule or pattern from a single event or a small number of events.

Free Association

A psychoanalytic technique where the patient speaks freely about their thoughts, memories, and feelings, revealing the unconscious processes.

Conditioning

A learning process in which an organism's behavior becomes modified as a result of its experience with an external stimulus.

Group Therapy

A form of psychotherapy involving one or more therapists working with several people at the same time.