PatienceJenkins891
PatienceJenkins891
25.11.2021 • 
Mathematics

You want to estimate the average weight in tons of loads carried by trucks through a particular stretch of road. From previous information the standard deviation is expected to be σ=19.2 tons. How many trucks must be weighed to estimate the the tons per truck to within 3 tons at a 90% level of confidence. Round your answer up to the largest whole number.

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