Given below are five observations collected in a regression study on two variables x independent variable) and y dependent variable).
$\begin{array} { l }
x&y\10&7\20&5\30&4\40&2\50&1
\end{array}$

a. Develop the least squares estimated regression equation
b. At 95% confidence, perform a t test and determine whether or not the slope is significantly different from zero.
c. Perform an F test to determine whether or not the model is significant. Let α = 0.05.
d. Compute the coefficient of determination.
e. Compute the coefficient of correlation.

Question

Given below are five observations collected in a regression study on two variables x independent variable) and y dependent variable).
 $\begin{array} { l  }
x&y\10&7\20&5\30&4\40&2\50&1
\end{array}$
 
a. Develop the least squares estimated regression equation
b. At 95% confidence, perform a t test and determine whether or not the slope is significantly different from zero.
c. Perform an F test to determine whether or not the model is significant. Let α = 0.05.
d. Compute the coefficient of determination.
e. Compute the coefficient of correlation.

Quizplus · Accepted Answer

The Answer of Given below are five observations collected in a regression study on two variables x independent variable) and y dependent variable).
 $\begin{array} { l  }
x&y\10&7\20&5\30&4\40&2\50&1
\end{array}$
 
a. Develop the least squares estimated regression equation
b. At 95% confidence, perform a t test and determine whether or not the slope is significantly different from zero.
c. Perform an F test to determine whether or not the model is significant. Let α = 0.05.
d. Compute the coefficient of determination.
e. Compute the coefficient of correlation.

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