SCENARIO 13-15
the Superintendent of a School District Wanted to Predict

question 134

True/False

SCENARIO 13-15
The superintendent of a school district wanted to predict the percentage of students passing a sixth- grade proficiency test.She obtained the data on percentage of students passing the proficiency test (% Passing), mean teacher salary in thousands of dollars (Salaries), and instructional spending per pupil in thousands of dollars (Spending) of 47 schools in the state.
Following is the multiple regression output with Y = % Passing as the dependent variable,
X1 =
Salaries and
X 2 = Spending: $$\begin{array}{l}\begin{array} { l r } \hline { \text { Regression Statistics } } \\\hline \text { Multiple R } & 0.4276 \\\text { R Square } & 0.1828 \\\text { Adjusted R Square } & 0.1457 \\\text { Standard Error } & 5.7351 \\\text { Observations } & 47 \\\hline\end{array}\\\\\text { ANOVA }\\\begin{array} { l r r r r r } \hline & d f & { \text { SS } } & { \text { MS } } & \text { F } & { \text { Significance } F } \\\hline \text { Regression } & 2 & 323.8284 & 161.9142 & 4.9227 & 0.0118 \\\text { Residual } & 44 & 1447.2094 & 32.8911 & & \\\text { Total } & 46 & 1771.0378 & & & \\\hline\end{array}\\\\\begin{array} { l r r r r r r } \hline & \text { Coefficients } & \text { Standard Error } & { t \text { Stat } } & \text { P-value } & \text { Lower 95\% } & \text { Upper 95\% } \\\hline \text { Intercept } & - 72.9916 & 45.9106 & - 1.5899 & 0.1190 & - 165.5184 & 19.5352 \\\text { Salary } & 2.7939 & 0.8974 & 3.1133 & 0.0032 & 0.9853 & 4.6025 \\\text { Spending } & 0.3742 & 0.9782 & 0.3825 & 0.7039 & - 1.5972 & 2.3455 \\\hline\end{array}\end{array}$$
-Referring to SCENARIO 13-15, the null hypothesis H0 : $\beta$ 1 = $\beta$ 2 = 0 implies that percentageof students passing the proficiency test is not related to either of the explanatory variables.

Grasp the changes in life expectancy over time and factors contributing to it.

Appreciate the efforts and challenges in preventing and treating infectious diseases over the past century.

Recognize the disparities in health outcomes among different demographic groups.

Understand the economic and health care implications of unhealthy behaviors on society.

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Definitions:

Objectivism

A philosophical system developed by Ayn Rand centered around the advocacy of rational self-interest and individual rights.

Suppressed Thoughts

Ideas or memories that are intentionally or unintentionally kept out of conscious awareness.

Laughter

A physical manifestation of joy or amusement, often considered as a universal language across cultures.

Freud

Sigmund Freud, an Austrian neurologist and the founding father of psychoanalysis, a methodology for treating psychopathology through dialogue.