Questions Refer to the Following Computer Output in Which a Researcher

question 7

Multiple Choice

Questions refer to the following computer output in which a researcher compared the GPA of traditional (aged 18-22) and nontraditional (aged 23 or older) students.
Table 10-1
GROUP $1 =$ Aged $18 - 22$
GROUP $2 =$ Aged 23 or older
Variable $=$ Grade point average


$\begin{array} { l c c c c } \text { GROUP } & N & \text { Mean } & S D & \text { Standard Error } \\ \text { GROUP 1 } & 15 & 2.95 & 0.556 & 0.143 \\ \text { GROUP 2 } & 15 & 3.08 & 0.524 & 0.135 \end{array}$


$F _ { \max }$ test $\quad F = 0.225 \quad p = 0.639$
Equal Variances Assumed
$t = - 0.68 \quad d f = 28 \quad p = 0.509$
Equal Variances Not Assumed
$t = - 0.68 \quad d f = 27.90 \quad p = 0.509$
-Consult Table 10-1. The descriptive statistics refer to the

• A) means and standard deviations for each group.
• B) results of the Fmax test.
• C) t value for "equal variances assumed."
• D) t value for "equal variances not assumed."

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Definitions:

Post-Translational

Refers to the changes a protein may undergo after translation, including folding, cutting, and addition of chemical groups, which are crucial for its final function.

Knockout

An experiment in which a gene is deliberately inactivated in a living organism; also, an organism that carries a knocked-out gene.

Inactivate

To render something inactive or no longer in effect, often used in contexts such as deactivating enzymes, genes, or pharmaceuticals.

Experiments

Controlled procedures carried out to investigate the effect of a variable by providing precise data and observations.