A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 163.8-cm and a stan
-
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 163.8-cm and a stan
company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 163.8-cm and a standard deviation of 1.7-cm. For shipment, 6 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is between 163-cm and 165.4-cm. P(163-cm <M<165.4-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.
A