Instruction 12-8
It Is Believed That Average Grade (Based on a Four

question 120

Multiple Choice

Instruction 12-8
It is believed that average grade (based on a four -point scale) should have a positive linear relationship with university entrance exam scores.Given below is the Microsoft Excel output from regressing average grade on university entrance exam scores using a data set of eight randomly chosen students from a large university.
Regressing average grade on university entrance exam score
$\begin{array}{lr}\hline {\text { Regression Statistics }} \\\hline \text { Multiple R } & 0.7598 \\\text { R Square } & 0.5774 \\\hline \text { Adjusted R Square } & 0.5069 \\\hline \text { Standard Error } & 0.2691 \\\hline \text { Observations } & 8 \\\hline\end{array}$
ANOVA
$\begin{array}{llllll} & d f & {\text { SS }} & M S & F & \text { Significance F } \\\hline \text { Regression } & 1 & 0.5940 & 0.5940 & 8.1986 & 0.0286 \\\text { Residual } & 6 & 0.4347 & 0.0724 & & \\\text { Total } & 7 & 1.0287 & & &\end{array}$
$\begin{array}{|l|r|r|r|r|r|r|}\hline & \text { Coefficients } & \text { Standard Error } & \text { t Stat } & \text { P-value } & \text { Lower 95\% } & \text { Upper 95\% } \\\hline \text { Intercept } & 0.5681 & 0.9284 & 0.6119 & 0.5630 & -1.7036 & 2.8398 \\\hline \text { University entrance } & & & & & & \\\text { exam score } & 0.1021 & 0.0356 & 2.8633 & 0.0286 & 0.0148 & 0.1895 \\\hline\end{array}$
-Referring to Instruction 12-8,the value of the measured test statistic to test whether there is any linear relationship between average grade and university entrance exam score is

• A)2.8633.
• B)0.7598.
• C)0.0356.
• D)0.1021.

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Definitions:

Female Cones

Reproductive structures of certain plants like conifers, which produce seeds in contrast to male cones that produce pollen.

Megasporangia

Structures in plants that produce megaspores, which develop into female gametophytes.

Antheridia

Male reproductive structures in plants, algae, and fungi that produce and release sperm.

Integuments

Layers or coverings of an organism or organ, serving to protect or enclose, especially the outer layer of seeds or the skin of humans and animals.