A four-year university has decided to implement a new approach to teaching statistics. Full-time and
adjunct professors were surveyed to determine whether they preferred the traditional lecture approach or
a computer approach for teaching statistics. Use hypothesis testing to test the independence of opinion
between the two groups.
$$\begin{array}{l}
\text { Table 11-3 }\
\begin{array} { l l l l }
& \text { Prefer Lecture } & \text { Prefer Computer } & \text { No Preference } \
\text { Full-time } & 8 & 13 & 6 \
\text { Adjunct } & 11 & 22 & 10
\end{array}
\end{array}$$
-What is the expected value of an adjunct professor who prefers computer instruction?
A) 21.50
B) 13.50
C) 11.67
D) 9.83

Question

A four-year university has decided to implement a new approach to teaching statistics. Full-time and
adjunct professors were surveyed to determine whether they preferred the traditional lecture approach or
a computer approach for teaching statistics. Use hypothesis testing to test the independence of opinion
between the two groups.
 $$\begin{array}{l}
\text { Table 11-3 }\
\begin{array} { l l l l } 
& \text { Prefer Lecture } & \text { Prefer Computer } & \text { No Preference } \
\text { Full-time } & 8 & 13 & 6 \
\text { Adjunct } & 11 & 22 & 10
\end{array}
\end{array}$$
-What is the expected value of an adjunct professor who prefers computer instruction?
A) 21.50
B) 13.50
C) 11.67
D) 9.83

Quizplus · Accepted Answer

The expected value is calculated using the formula: (Row Total * Column Total) / Grand Total. For adjunct professors who prefer computer instruction, the expected value is (43 * 35) / 70 = 21.50.

A Four-Year University Has Decided to Implement a New Approach