Consider the Following Results for Two Samples Randomly Taken from Two

Short Answer

Consider the following results for two samples randomly taken from two populations.
$\begin{array}{lcc}&\text { Sample A }&\text { Sample B }\\\text { Sample Size } & 25 & 38 \\\text { Sample Mean } & 66 & 60 \\\text { Sample Standard Deviation } & 5 & 7\end{array}$
a. What are the degrees of freedom for the t distribution?
b. At 95% confidence, compute the margin of error.
c. Develop a 95% confidence interval for the difference between the two population means.