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6 March, 20:02

An administrator in a very large company wants to estimate the mean level of nitrogen oxides (NOX) emitted in the exhaust of a particular car model in their very large fleet of cars. Historically, nitrogen oxide levels have been known to be Normally distributed with a standard deviation of 0.15 g/ml. What is the parameter of interest that the administrator wants to estimate?

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  1. 6 March, 20:29
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    For very well describe a normal distribution, it is needed the mean and the standard deviation. We are only lacking the mean to properly describe the nitrogen levels emitted by the vehicles. He would like to measure the emitted NOX so he could properly model this phenomena.
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