A Biology Professor Claimed That the Proportions of Grades in His

question 93

Essay

A biology professor claimed that the proportions of grades in his classes are the same. A sample of 100 students showed the following frequencies. $$\begin{array} { | l | c | c | c | c | c | } \hline \text { Grade } & \text { A } & \text { B } & \text { C } & \text { D } & \text { F } \\\hline \text { Frequency } & 14 & 23 & 27 & 26 & 10 \\\hline\end{array}$$ Determine the rejection region at the 5% significance level.

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Definitions:

Physically Present

Being bodily in a specific location or space, as opposed to being there in thought, via communication technology, or representation.

Anxiety Hierarchy

An anxiety hierarchy is a ranked list of stimuli or situations that provoke anxiety responses, used in therapy to progressively desensitize a person to their fears.

Cognitive Schema

A mental framework that organizes and interprets information in the brain, helping to understand and predict the world around us.

Relaxation Chamber

A designed space or device used to facilitate a state of physical and mental relaxation.