Consider the following results for two samples randomly taken from two populations.
$\begin{array}{lcc}
&\text { Sample A } & \text { Sample B } \
\text { Sample Size }&20 & 25 \
\text { Sample Mean }&28 & 22 \
\text { Sample Standard Deviation }&5 & 6
\end{array}$
a. Determine the degrees of freedom for the t distribution.
b. At 95% confidence, what is the margin of error?
c. Develop a 95% confidence interval for the difference between the two population means.

Question

Consider the following results for two samples randomly taken from two populations.
 $\begin{array}{lcc}
&\text { Sample A } & \text { Sample B } \
\text { Sample Size }&20 & 25 \
\text { Sample Mean }&28 & 22 \
\text { Sample Standard Deviation }&5 & 6
\end{array}$ 
a. Determine the degrees of freedom for the t distribution.
b. At 95% confidence, what is the margin of error?
c. Develop a 95% confidence interval for the difference between the two population means.

Quizplus · Accepted Answer

The Answer of Consider the following results for two samples randomly taken from two populations.
 $\begin{array}{lcc}
&\text { Sample A } & \text { Sample B } \
\text { Sample Size }&20 & 25 \
\text { Sample Mean }&28 & 22 \
\text { Sample Standard Deviation }&5 & 6
\end{array}$ 
a. Determine the degrees of freedom for the t distribution.
b. At 95% confidence, what is the margin of error?
c. Develop a 95% confidence interval for the difference between the two population means.

Consider the Following Results for Two Samples Randomly Taken from Two