A state highway inspector needs an estimate of the mean weight of trucks. He selects a random sample of 49 trucks passing the weighing station and finds the mean is 15.8 tons, with a standard deviation of the sample of 4.2 tons. What is probability that a truck will weigh less than 14.3 tons?

  

Answer rating: 100% (QA)

To calculate the probability that a truck will weigh less than 143 tons we can use the standard norm... View the full answer