A Random Sample of 30 Observations Is Selected from a Normally

question 24

Short Answer

A random sample of 30 observations is selected from a normally distributed population. The sample variance is 12. In the 90% confidence interval for the population variance, the upper limit will be: $\begin{array}{|l|l|}\hline A&\text {15.176 }\\\hline B&\text { 8.177}\\\hline C&\text { 19.652}\\\hline D&\text { 16.941}\\\hline\end{array}$

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Definitions:

Externally Motivated

Being driven by external factors or rewards, such as praise, money, or recognition, rather than internal desires or satisfaction.

Social Motives

Motives (such as the needs for affiliation and achievement) that are acquired through experience and interaction with others.

Extrinsic Motives

Motivations driven by external rewards or punishments rather than by the intrinsic value of the activity itself.

Activation Phase

A stage in the process of memory that involves the retrieval of information to use it actively.