Last School Year, the Student Body of a Local University $$\begin{array} { l l } \text { Freshmen } & 83 \\\text { Sophomores } & 68 \\\text { Juniors } & 85 \\\text { Seniors } & 64\end{array}$$

question 22

Multiple Choice

Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors.A sample of 300 students taken from this year's student body showed the following number of students in each classification. $$\begin{array} { l l } \text { Freshmen } & 83 \\\text { Sophomores } & 68 \\\text { Juniors } & 85 \\\text { Seniors } & 64\end{array}$$ We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year.The calculated value for the test statistic equals

• A) .54.
• B) .65.
• C) 1.66.
• D) 6.66.

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Definitions:

Conditional

A logical statement that connects two propositions, such that the second proposition follows from the first, typically formulated as "if... then..."

Equivalent Statements

Sentences that have the same truth value in every possible situation.

Biconditional

A logical statement wherein two propositions are true or false together; it is true if both parts have the same truth value.

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