A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 230.5-cm and a standard deviation of 0.7-cm. For shipment, 23 steel rods are bundled together. Find...

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 230.5-cm and a standard deviation of 0.7-cm. For shipment, 23 steel rods are bundled together.


Find the probability that the average length of a randomly selected bundle of steel rods is less than 230.3-cm.


P(M
< 230.3-cm)="">



Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact
z-scores or
z-scores rounded to 3 decimal places are accepted.