A type of sampling (independent or paired), sample size(s), and a figure showing the results of preliminary data analyseson the sample(s)are provided. The intent is to employ the sample data to perform a hypothesis test to compare the meansof the two populations from which the data were obtained. Use the information provided to decide which procedureshould be applied.
-Independent; $\mathrm { n } _ { 1 } = 12$ and $\mathrm { n } _ { 2 } = 12$. A normal probability plot for each sample and a back-to-back stem-and-leaf diagram are given below.

$\begin{array}{r|l|l}
997665 & 0 & 67789 \
420 & 1 & 0025 \
0 & 2 & 2 \
7 & 3 & 0 \
0 & 4 & 3
\end{array}$
A)Paired t-test
B) Mann-Whitney test
C) Pooled t-test
D) Paired Wilcoxon signed-rank test

Question

A type of sampling (independent or paired), sample size(s), and a figure showing the results of preliminary data analyseson the sample(s)are provided. The intent is to employ the sample data to perform a hypothesis test to compare the meansof the two populations from which the data were obtained. Use the information provided to decide which procedureshould be applied.
-Independent; $\mathrm { n } _ { 1 } = 12$ and $\mathrm { n } _ { 2 } = 12$. A normal probability plot for each sample and a back-to-back stem-and-leaf diagram are given below.

$\begin{array}{r|l|l}
997665 & 0 & 67789 \
420 & 1 & 0025 \
0 & 2 & 2 \
7 & 3 & 0 \
0 & 4 & 3
\end{array}$
A)Paired t-test 
B) Mann-Whitney test 
C) Pooled t-test 
D) Paired Wilcoxon signed-rank test

Quizplus · Accepted Answer

The Answer of A type of sampling (independent or paired), sample size(s), and a figure showing the results of preliminary data analyseson the sample(s)are provided. The intent is to employ the sample data to perform a hypothesis test to compare the meansof the two populations from which the data were obtained. Use the information provided to decide which procedureshould be applied.
-Independent; $\mathrm { n } _ { 1 } = 12$ and $\mathrm { n } _ { 2 } = 12$. A normal probability plot for each sample and a back-to-back stem-and-leaf diagram are given below.

$\begin{array}{r|l|l}
997665 & 0 & 67789 \
420 & 1 & 0025 \
0 & 2 & 2 \
7 & 3 & 0 \
0 & 4 & 3
\end{array}$
A)Paired t-test 
B) Mann-Whitney test 
C) Pooled t-test 
D) Paired Wilcoxon signed-rank test

A Type of Sampling (Independent or Paired), Sample Size(s), and a Figure