A researcher performed a study to determine whether an association exists between sex and blood type.He obtained the following data from a random sample. $\begin{array}{|l|c|c|c|c|c|}
&&\text {Blood Type }\
\hline \text {Sex }& \mathrm{O} & \mathrm{A} & \mathrm{B} & \mathrm{AB} & \text { Total } \
\hline \text { Female } & 115 & 141 & 27 & 13 & 296 \
\hline \text { Male } & 86 & 91 & 26 & 9 & 212 \
\hline \text { Total } & 201 & 232 & 53 & 22 & 508 \
\hline
\end{array}$
A)No,because the data are quantitative.
B)No,because the sample does not appear to be random.
C)No,because the expected cell frequency condition is violated.
D)Yes.
E)No,because it is not possible to find the residuals.

Question

Quizplus · Accepted Answer

The data are categorical (sex and blood type), and there's no information suggesting the sample isn't random or that expected cell frequencies are violated. Residuals aren't relevant to the basic question of association in a contingency table.

A Researcher Performed a Study to Determine Whether an Association