Students Taking an Intro Stats Class Reported the Number of Credit

question 29

Essay

Students taking an intro stats class reported the number of credit hours
that they were taking that quarter.Summary statistics are shown in the
table.
$$\begin{array} { | l | c | } \hline \bar { x } & 16.65 \\\hline s & 2.96 \\\hline \min & 5 \\\hline \text { Q1 } & 15 \\\hline \text { median } & 16 \\\hline \text { Q3 } & 19 \\\hline \max & 28 \\\hline\end{array}$$
A.Suppose that the college charges $73 per credit hour plus a flat
student fee of $35 per quarter.For example, a student taking 12
credit hours would pay $35 + $73(12) = $911 for that quarter.
i.What is the mean fee paid? ii.What is the standard deviation for the
fees paid?
iii.What is the median fee paid? iv.What is the IQR for the fees paid?
B.Twenty-eight credit hours seems like a lot.Would you consider 28 credit hours to be
unusually high? Explain.

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Definitions:

Deliberate Deception

Intentional conduct designed to mislead or deceive someone, often to gain an advantage or to avoid an obligation.

Substantial Evidence

Evidence that is adequate to support a conclusion or justify a decision, often used in legal and regulatory contexts to indicate a reasonable level of proof.

Hindsight Bias

The tendency to believe, after an event has occurred, that one would have predicted or expected the outcome, often referred to as the "I-knew-it-all-along" phenomenon.

Self-fulfilling Prophesy

A prediction that directly or indirectly causes itself to become true, by the very terms of the prophecy itself, due to positive feedback between belief and behavior.