SAT, 29.12.2021 01:50, danaya111

A highway inspector needs an estimate of the mean weight of trucks crossing a bridge on the interstate highway system. She selects a random sample of 49 trucks and finds a mean of 15. 8 tons with a sample standard deviation of 3. 85 tons. The 90 percent confidence interval for the population mean is.

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A highway inspector needs an estimate of the mean weight of trucks crossing a bridge on the intersta...