Steel rods are manufactured with a mean length of 29

Last updated: 6/21/2023

Steel rods are manufactured with a mean length of 29 centimeter cm Because of variability in the manufacturing process the lengths of the rods are approximately normally distributed with a standard deviation of 0 08 cm Complete parts a to d a What proportion of rods has a length less than 28 9 cm 0 1056 Round to four decimal places as needed b Any rods that are shorter than 28 84 cm or longer than 29 16 cm are discarded What proportion of rods will be discarded 0 0455 Round to four decimal places as needed c Using the results of part b if 5000 rods are manufactured in a day how many should the plant manager expect to discard Use the answer from part b to find this answer Round to the nearest integer as needed