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A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 94.4 cm and a stand
Posted: Wed Nov 24, 2021 9:15 am
by answerhappygod
- A Company Produces Steel Rods The Lengths Of The Steel Rods Are Normally Distributed With A Mean Of 94 4 Cm And A Stand 1 (22.05 KiB) Viewed 75 times
A
company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 94.4 cm and a standard deviation of 2.2-cm. For shipment, 18 steel rods are bundled together. Round all answers to four decimal places if necessary. a. What is the distribution of X? X-N b. What is the distribution of ? -N c. For a single randomly selected steel rod, find the probability that the length is between 93.7-cm and 94.5-cm. d. For a bundled of 18 rods, find the probability that the average length is between 93.7.cm and 94.5 cm. e. For part d), is the assumption of normal necessary? O NOO Yes