Question
The mean weight of trucks traveling on a particular section of I-475 is not known. A state highway inspector needs an estimate of the population
The mean weight of trucks traveling on a particular section of I-475 is not known. A state highway inspector needs an estimate of the population mean. He selects and weighs a random sample of 49 trucks and finds the mean weight is 17.0 tons. The population standard deviation is 5.0 tons. What is the 95% confidence interval for the population mean?
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Birds Higher Engineering Mathematics
Authors: John Bird
9th Edition
1000353036, 9781000353037
