In Order to Estimate with 95% Confidence the Expected Value

Short Answer

In order to estimate with 95% confidence the expected value of y in a simple linear regression problem, a random sample of 10 observations is taken. Which of the following t-table values listed below would be used? $\begin{array}{|l|l|}\hline\text { A. } & 2.228 . \\\hline \text { B. } & 2.306 . \\\hline \text { C. } & 1.860 . \\\hline \text { D. } & 1.812 . \\\hline\end{array}$