the mean weight of trucks traveling on a particular section of i-475 is not known. a state highway inspector needs an estimate o

Question

3 years ago

11

the mean weight of trucks traveling on a particular section of i-475 is not known. a state highway inspector needs an estimate o

f the population mean. he selects and weighs a random sample of 81 trucks and finds the mean weight is 15.8 tons. the population standard deviation is 3.8 tons. what is the 95% confidence interval (upper limit) for the population mean?

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1 answer:

bekas [8.4K] · Answer 1 · 2022-11-13T17:16:59+03:00

bekas [8.4K]3 years ago

4 0

Answer:

14.7 and 16.9