chapter 9 m/c
a. inventories and production can be managed separately
b. inventory is not important at the production planning level
c. inventories are usually insignificant on the balance sheet
d. all the above are true
e. none of the above is true
Errors in measuring truck weights. To help highway planners anticipate the need for road repairs and design future construction projects, data are collected on the estimated volume and weight of truck traffic on specific roadways (Transportation Planning Handbook, 2016) using specialized "weigh-in-motion" equipment. In an experiment involving repeated weighing of a 27,907-pound truck, it was found that the weights recorded by the weigh-in-motion equipment were approximately normally distributed with a mean of 27,315 and a standard deviation of 628 pounds (Minnesota Department of Transportation). It follows that the difference between the actual weight and recorded weight, the error of measurement, is normally distributed with a mean of 592 pounds and a standard deviation of 628 pounds. What is the probability that the error in the weight recorded by the weigh-in-motion equipment for a 27,907-pound truck exceeds 400 pounds?