Remember that we already learned about the standard error .... The standard error of the sample mean is given by the following equation: $$\sigma_\bar{y} = \frac{\sigma}{\sqrt{n}} $$. In the above equation, $\sigma$ is the population standard deviation. But like $\mu$, $\sigma$ is an unknown parameter.
Alicia Keys and White Stripes singer Jack White are to record the theme for new James Bond film Quantum of Solace. Jack White and Alicia Keys will collaborate on the new James Bond film theme Photo: JOHN TAYLOR/PA. By Anita Singh, Showbusiness Editor. 11:24AM BST 30 Jul 2008.
media_cameraBrother and sister musicians Grace and Conrad Sewell in laneway mode. Locally, You Donât Own Me is on high rotation on commercial radio. âI think everybody should be an individual and nobody should be able to tell you what to do and what to say,â she said when asked her understanding of the lyrics.