A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 108.7-cm and a standard dev
iation of 0.6-cm. For shipment, 22 steel rods are bundled together. Find the probability that the average length of rods in a randomly selected bundle of steel rods is less than 109.1-cm.
Round to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 2 decimal places are accepted.