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:

Antidiuretic Hormone

A hormone secreted by the posterior pituitary gland that conserves water in the body by reducing urine output and increasing water absorption in the kidneys.

Fluid Intake

The consumption of liquids or water, critical for maintaining body hydration and supporting physiological functions.

ADH Secretion

The release of antidiuretic hormone (also known as vasopressin) from the pituitary gland, which helps regulate water balance in the body.

Urine Volume

The amount of urine excreted by the kidneys over a given period of time, an indicator of hydration status and kidney function.