A Researcher Performed a Study to Determine Whether an Association $\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { Blood Type }$

question 17

Multiple Choice

A researcher performed a study to determine whether an association exists between sex and blood type.He obtained the following sample data. $\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { Blood Type }$
$\begin{array}{c}Sex&\begin{array}{|l|c|c|c|c|c|}\hline& \mathrm{O} & \mathrm{A} & \mathrm{B} & \mathrm{AB} & \text { Total } \\\hline \text { Female } & 162 & 138 & 40 & 20 & 360 \\\hline \text { Male } & 138 & 132 & 35 & 15 & 320 \\\hline \text { Total } & 300 & 270 & 75 & 35 & 680 \\\hline\end{array}\end{array}$

• A)H0: Gender and blood type are dependent. HA: Gender and blood type are independent.
• B)H0: Blood types are not uniformly distributed over the genders. HA: Blood types are uniformly distributed over the genders.
• C)H0: Gender and blood type are independent. HA: Gender and blood type are not independent.
• D)H0: There is a relationship between gender and blood type. HA: There is no relationship between gender and blood type.
• E)H0: Gender and blood type are dependent. HA: Gender and blood type are not dependent.

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Definitions:

Predetermined Overhead Rate

An estimated rate used to allocate manufacturing overhead costs to individual units of production, based on a chosen activity base.

Direct Labor-Hours

The total hours worked by employees who are directly involved in the production process, used as a basis for assigning labor costs to products.

Machine-Hours

A measure of production time, quantified in hours, that machinery is operating to perform work.

Machining Department

A specialized division within a manufacturing operation that performs machining processes, such as cutting, shaping, or drilling materials.