he range of the prices after \( 6 \mathrm{p}, \mathrm{m} \). Find the standard deviation of \( x \). given that \( \Sigma 4 x^{2}=14600, \Sigma 2 x=420 \) and \( n=20 \)

\( \alpha \) (alpha) is also known as the probability of failing to reject the \( H_{0} \) when it is false. True False

The following data are the estimated market values (in millions of dollars) of 12 companies in the auto part business: \( 22,20,15,16,38,11,13,10,19,26,17,30 \) Round your answers in part (a) to 1 decimal place. (a) Calculate the values of \( Q_{1}, Q_{2}, Q_{3} \) \( Q_{1}=\square \) \( Q_{2}= \) \( Q_{3}= \)

If \( \mathrm{H}_{0:} \rho=0.75 \) and \( \mathrm{H}_{1:} \rho>0.75 \), then the bell-curve will be right tailed. True Oalse

During your research on a topic, you run across a blog site where several people posted that fuel prices have gone up \( 10 \% \) in the last six months. You can provide this data in your presentation as which of the following? People across the country are reporting that gas prices have gone up \( 10 \% \) in the last six months. Gas prices have gone up \( 10 \% \) in the last six months. Typical of opinions across the country, users on blahblah-blog.com have mentioned that gas prices have gone up \( 10 \% \) in the last six months.

Find the standard deviation of \( x \), given that \( \Sigma 4 x^{2}=14600, \Sigma 2 x=420 \) and \( n=20 \).