Grade Distribution
a Professor Would Like to Test to See

question 111

Essay

Grade distribution
A professor would like to test to see if the grade distribution for male and female students are the same.The following table shows the distribution of grades for 1450 students.
$$\begin{array} { | c | c | c | c | c | c | c } \hline & \text { A } & \text { B } & \mathbf { C } & \mathbf { D } & \mathbf { F } & \text { Tatal } \\\hline \text { Male } & 124 & 192 & 212 & \mathbf { 8 7 } & 15 & \mathbf { 6 3 0 } \\\hline \text { Female } & 195 & 238 & 24 \mathrm { D } & 120 & 27 & \mathbf { 8 2 0 } \\\hline \text { Tatal } & 319 & 430 & 452 & 207 & 42 & 1450 \\\hline\end{array}$$
-Using $\alpha$ = 0.05,state the decision rule in terms of the critical value.

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Definitions:

Legally Sufficient Value

A value, consideration, or benefit that is recognized by law as adequate to support a binding contract.

Preexisting Duty

An obligation or duty that already exists under a contract, and performing it, therefore, does not constitute consideration for a new promise.

Law

Rules devised and applied by institutions of society or the government to modulate behavior.

Legally Sufficient Value

An acceptable form or measure of value that must be provided in a contract to make it binding and enforceable under law.