A Local Parent Group Was Concerned with the Increasing Cost

question 56

Multiple Choice

A local parent group was concerned with the increasing cost of school for families with school aged children.The parent group was interested in understanding the relationship between the academic grade level for the child and the total costs spent per child per academic year.They performed a multiple regression analysis using total cost as the dependent variable and academic year (x₁) as the independent variables.The multiple regression analysis produced the following tables. $$\begin{array} { | c | c | c | c | c | } \hline & \text { Coefficients } & \text { Stardard Error } & t \text { Statistic } & p \text {-value } \\\hline \text { Intercept } & 707.9144 & 435.1183 & 1.626947 & 0.114567 \\\hline \boldsymbol { x } _ { 1 } & 2.903307 & 81.62802 & 0.035568 & 0.971871 \\\hline \mathbf { x } _ { 1 } { } ^ { 2 } & 11.91297 & 3.806211 & 3.129878 & 0.003967 \\\hline\end{array}$$ $$\begin{array} { | c | c | c | c | c | c | } \hline & \text { Df } & \text { SS } & \text { MS } & F & p \text {-value } \\\hline \text { Regression } & 2 & 32055153 & 16027577 & 47.34557 & 1.49 \mathrm { E } - 09 \\\hline \text { Residual } & 27 & 9140128 & 338523.3 & & \\\hline \text { Total } & 29 & 41195281 & & & \\\hline\end{array}$$ The regression equation for this analysis is ____________.

• A)= 707.9144 + 2.903307 x₁ + 11.91297 x₁²
• B)= 707.9144 + 435.1183 x₁ + 1.626947 x₁²
• C) = 435.1183 + 81.62802 x₁ + 3.806211 x₁²
• D) = 1.626947 + 0.035568 x₁ + 3.129878 x₁²
• E) = 1.626947 + 0.035568 x₁ - 3.129878 x₁²

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Definitions:

CD4 Glycoprotein

A protein on the surface of immune cells, such as T helper cells, that is involved in initiating the immune response.

Cytotoxic T

A type of lymphocyte (T cell) that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.

Intracellular Microorganisms

Microorganisms that live within the cells of a host, often causing disease or infection.

Cell-Mediated

Referring to immune responses that do not involve antibodies but rather the activation of phagocytes and antigen-specific cytotoxic T-lymphocytes.