The Dean of a Local School Wants to Determine If

question 56

Short Answer

The dean of a local school wants to determine if the grade distribution is independent of
the subject matter taught. How many degrees of freedom does this contingency table have?
$$\begin{array} { l l l l l l } \text { Subject } & \mathbf { A } & \mathbf { B } & \mathbf { C } & \mathbf { D } & \mathbf { E } \\\text { Science } & 5 & 11 & 27 & 7 & 11 \\\text { History } & 14 & 18 & 32 & 5 & 7 \\\text { English } & 18 & 35 & 68 & 18 & 23\end{array}$$

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Definitions:

Forecasting

The process of making predictions about future events based on analysis of historical and current data.

Nonprogrammed Decision Making

A decision-making process that deals with unique, non-routine, and complex problems requiring creative solutions.

Escalation of Commitment

The phenomenon where individuals or organizations continue to invest in a decision despite evidence of its ineffectiveness, often to justify previous investments.

Dollar Cost Averaging

An investment strategy that involves regularly investing a fixed amount of money, regardless of the share price, to reduce the impact of volatility.