The Following 10 Observations of Variables X and Y Were

Essay

The following 10 observations of variables x and y were collected. $$\begin{array} { | c | c c c c c c c c c c | } \hline \boldsymbol { x } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & \mathbf { 8 } & 9 & 10 \\\hline y & 25 & 22 & 21 & 19 & 14 & 15 & 12 & 10 & 6 & 2 \\\hline\end{array}$$
a.Calculate the standard error of estimate.
b.Test to determine if there is enough evidence at the 5% significance level to indicate that x and y are negatively linearly related.
c.Calculate the coefficient of correlation, and describe what this statistic tells you about the regression line.