Test Hypotheses Regarding the Difference of Two Independent Means
-Test the hypothesis that $\mu _ { 1 } = \mu _ { 2 }$. Two samples are randomly selected from normal populations. The sample statistics are given below.
$$\begin{array} { l l }
\mathrm { n } _ { 1 } = 25 & \mathrm { n } _ { 2 } = 30 \
\overline { \mathrm { x } } 1 = 23 & \overline { \mathrm { x } _ { 2 } } = 21 \
\mathrm {~s} _ { 1 } = 1.5 & \mathrm {~s} _ { 2 } = 1.9
\end{array}$$

Question

Test Hypotheses Regarding the Difference of Two Independent Means
-Test the hypothesis that $\mu _ { 1 } = \mu _ { 2 }$. Two samples are randomly selected from normal populations. The sample statistics are given below.
$$\begin{array} { l l } 
\mathrm { n } _ { 1 } = 25 & \mathrm { n } _ { 2 } = 30 \
\overline { \mathrm { x } } 1 = 23 & \overline { \mathrm { x } _ { 2 } } = 21 \
\mathrm {~s} _ { 1 } = 1.5 & \mathrm {~s} _ { 2 } = 1.9
\end{array}$$

Quizplus · Accepted Answer

The Answer of Test Hypotheses Regarding the Difference of Two Independent Means
-Test the hypothesis that $\mu _ { 1 } = \mu _ { 2 }$. Two samples are randomly selected from normal populations. The sample statistics are given below.
$$\begin{array} { l l } 
\mathrm { n } _ { 1 } = 25 & \mathrm { n } _ { 2 } = 30 \
\overline { \mathrm { x } } 1 = 23 & \overline { \mathrm { x } _ { 2 } } = 21 \
\mathrm {~s} _ { 1 } = 1.5 & \mathrm {~s} _ { 2 } = 1.9
\end{array}$$

Test Hypotheses Regarding the Difference of Two Independent Means -Test μ1=μ2\mu _ { 1 } = \mu _ { 2 }μ1​=μ2​

Test Hypotheses Regarding the Difference of Two Independent Means
-Test $\mu _ { 1 } = \mu _ { 2 }$