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Unformatted text preview: P(X_<44,00) =P(X_-Ux/Ox_<44,000-Ux_/Ox_) P(Z<44,000-U/O/swrt N) P(Z<44,000-46,700/(5600/sqrt 42) P(Z<-2700/(5600/0.481) P(Z<-2700/864.1) P(Z<-3.12-3.12=-3.1-0.02 0.0009 probability (0.09%) that the means salary of the 42 person sample lies below 44,000 28. 1. The population=all gas prices in cali during the week pop mean, u=3.305 pop std dev...
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- Fall '10