Below You Are Given a Partial Computer Output Based on a Sample

question 21

Essay

Below you are given a partial computer output based on a sample of 8 observations, relating an independent variable x) and a dependent variable y).
$$\begin{array} { c c } &\text { Caofficient } & \text { Standard Error } \\\text { Intercept }&- 9.462 & 7.032 \\x&0.769 & 0.184\end{array}$$ Analysis of Variance
SOURCE SS
Regression 400
Error Residual) 138
a. Develop the estimated regression line.
b. At α = 0.05, test for the significance of the slope.
c. At α = 0.05, perform an F test.
d. Determine the coefficient of determination.

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