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Confidence interval for population mean.

The mean weight of trucks travelling on a particular section of I-475 is not known. A state highway inspector needs an estimate of the mean. He selects a random sample of 49 trucks passing the weighing station and finds the mean is 15.80 tons. The population standard deviation is 3.8 tons. What is the 95 percent interval for the population mean?

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  • Category:- Statistics and Probability
  • Reference No.:- M919903

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