Shown Below Is a Partial Computer Output from a Regression

question 57

Essay

Shown below is a partial computer output from a regression analysis. $\begin{array}{lll} & \text { Coefficients } & \text { Standard Etror } \\\text { Constant } & 10.00 & 2.00 \\\mathrm{x}_{1} & -2.00 & 1.50 \\\mathrm{x}_{2} & 6.00 & 2.00 \\\mathrm{x}_{3} & -4.00 & 1.00\end{array}$
ANOVA
$\begin{array}{lllll} & d f & S S & M S&F \\\text { Regression } & & 60 & \\\text { Error }\\\text { Total } & 19 & 140\end{array}$ ​
a.
Use the above results and write the regression equation.
b.
Compute the multiple coefficient of determination and fully interpret its meaning.
c.
At α = .05, test to see if there is a relation between x₁ and y.
d.
At α = .05, test to see if there is a relation between x₃ and y.
e.
Is the regression model significant? Perform an F test and let α = .05.

Analyze the evolutionary relationships and characteristics of chordates, including tunicates, lancelets, and vertebrates.

Recognize the role of specific organ systems, such as the water vascular system, in the biology of echinoderms.

Understand the diversity within the phylum Echinodermata and identify the class with the greatest species diversity.

Describe the development and key characteristics of vertebrates and their embryonic development.

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