A study wants to investigate whether the population variance is greater than 8, if a random sample of size 40, yielded a variance of 10. Which of the following are the correct null hypothesis and alternative hypotheses? $\begin{array}{|l|l|}
\hline A.&\mathrm{Ho}: \sigma^{2}=10\&H_{A}: \sigma^{2}10\
\hline B.&\mathrm{H}_{o} \mathrm{~s}^{2}=10\&\mathrm{H}_{\mathrm{A}}: \mathrm{s}^{2}10 \
\hline C.&\mathrm{H}_{O} \mathrm{~s}^{2}=8\&\mathrm{H}_{A}: s^{2}8\
\hline D.&\text { Ho: } \sigma^{2}=8\&\mathrm{H}_{\mathrm{A}}: \sigma^{2}8\
\hline
\end{array}$

Question

A study wants to investigate whether the population variance is greater than 8, if a random sample of size 40, yielded a variance of 10. Which of the following are the correct null hypothesis and alternative hypotheses? $\begin{array}{|l|l|}
\hline  A.&\mathrm{Ho}: \sigma^{2}=10\&H_{A}: \sigma^{2}>10\
\hline  B.&\mathrm{H}_{o} \mathrm{~s}^{2}=10\&\mathrm{H}_{\mathrm{A}}: \mathrm{s}^{2}>10 \
\hline  C.&\mathrm{H}_{O} \mathrm{~s}^{2}=8\&\mathrm{H}_{A}: s^{2}>8\
\hline  D.&\text { Ho: } \sigma^{2}=8\&\mathrm{H}_{\mathrm{A}}: \sigma^{2}>8\
\hline 
\end{array}$

Quizplus · Accepted Answer

The Answer of A study wants to investigate whether the population variance is greater than 8, if a random sample of size 40, yielded a variance of 10. Which of the following are the correct null hypothesis and alternative hypotheses? $\begin{array}{|l|l|}
\hline  A.&\mathrm{Ho}: \sigma^{2}=10\&H_{A}: \sigma^{2}>10\
\hline  B.&\mathrm{H}_{o} \mathrm{~s}^{2}=10\&\mathrm{H}_{\mathrm{A}}: \mathrm{s}^{2}>10 \
\hline  C.&\mathrm{H}_{O} \mathrm{~s}^{2}=8\&\mathrm{H}_{A}: s^{2}>8\
\hline  D.&\text { Ho: } \sigma^{2}=8\&\mathrm{H}_{\mathrm{A}}: \sigma^{2}>8\
\hline 
\end{array}$

A Study Wants to Investigate Whether the Population Variance Is