Independent random samples selected from two normal populations produced the
following sample means and standard deviations. $\begin{array}{ll}
\text { Sample 1 } & \text { Sample } 2 \
n_{1}=14 & n_{2}=11 \
\overline{x_{1}}=7.1 & \bar{x}_{2}=8.4 \
s_{1}=2.3 & s_{2}=2.9
\end{array}$

Find and interpret the $95 \%$ confidence interval for $\left( \mu _ { 1 } - \mu _ { 2 } \right)$.

Question

Independent random samples selected from two normal populations produced the
following sample means and standard deviations. $\begin{array}{ll}
\text { Sample 1 } & \text { Sample } 2 \
n_{1}=14 & n_{2}=11 \
\overline{x_{1}}=7.1 & \bar{x}_{2}=8.4 \
s_{1}=2.3 & s_{2}=2.9
\end{array}$

Find and interpret the $95 \%$ confidence interval for $\left( \mu _ { 1 } - \mu _ { 2 } \right)$.

Quizplus · Accepted Answer

The Answer of Independent random samples selected from two normal populations produced the
following sample means and standard deviations. $\begin{array}{ll}
\text { Sample 1 } & \text { Sample } 2 \
n_{1}=14 & n_{2}=11 \
\overline{x_{1}}=7.1 & \bar{x}_{2}=8.4 \
s_{1}=2.3 & s_{2}=2.9
\end{array}$

Find and interpret the $95 \%$ confidence interval for $\left( \mu _ { 1 } - \mu _ { 2 } \right)$.

Independent Random Samples Selected from Two Normal Populations Produced the