Suppose that nine observations are drawn from a normal population whose standard deviation is 2. The observations are: $\begin{array}{|l|l|l|l|l|l|l|l|l|}
\hline 15&9&13&11&8&12&11&7&10 \
\hline
\end{array}$ At 95% confidence, you want to determine whether the mean of the population from which this sample was taken is significantly different from 10.
a. State the null and alternative hypotheses.
b. Compute the value of the test statistic.
c. Compute the p-value.
d. Interpret the results.

Question

Quizplus · Accepted Answer

The Answer of Suppose that nine observations are drawn from a normal population whose standard deviation is 2. The observations are: $\begin{array}{|l|l|l|l|l|l|l|l|l|}
\hline 15&9&13&11&8&12&11&7&10 \
\hline
\end{array}$ At 95% confidence, you want to determine whether the mean of the population from which this sample was taken is significantly different from 10.
a. State the null and alternative hypotheses.
b. Compute the value of the test statistic.
c. Compute the p-value.
d. Interpret the results.

Suppose That Nine Observations Are Drawn from a Normal Population 159131181211710\begin{array}{|l|l|l|l|l|l|l|l|l|}\hline 15&9&13&11&8&12&11&7&10 \\\hline\end{array}15​9​13​11​8​12​11​7​10​​

Suppose That Nine Observations Are Drawn from a Normal Population $\begin{array}{|l|l|l|l|l|l|l|l|l|}\hline 15&9&13&11&8&12&11&7&10 \\\hline\end{array}$