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.
Quantum of Solace (2008) is the 22nd James Bond film produced by Eon Productions, and is the direct sequel to the 2006 film Casino Royale. Directed by Marc Forster, it features Daniel Craig's second performance as James Bond. In the film, Bond seeks revenge for the death of his lover, Vesper Lynd, and is assisted by Camille Montes (Olga Kurylenko), who is plotting revenge for the murder of her family.