A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 154.5-cm and a standard deviation of 2.4-cm. For shipment, 22 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is between 153.5-cm and 155.6-cm. P(153.5-cm < M < 155.6-cm) =

The total annual precipitation for a region is approximately normallydistributed with a mean of 1050 mm and a standard deviation of 400 mm. What isthe probability of an annual precipitation greater than 1050 mm but less than 1300? Answer = 19.5

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 99.3-cm and a standard deviation of 1.5-cm. For shipment, 25 steel rods are bundled together.Find P27, which is the average length separating the smallest 27% bundles from the largest 73% bundles. P27 =

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 217.3-cm and a standard deviation of 2.3-cm. For shipment, 15 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is between 216.2. cm and 218.9-cm. P(216.2-cm < M 218.9-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. Submit Question 4