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A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 128.3-cm and a standard deviation of 2.2-cm. For shipment, 7 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is between 128.9- cm and 129.7-cm. P(128.9-cm < M < 129.7-cm) =

A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 128.3-cm and a standard deviation of 2.2-cm. For shipment, 7 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is between 128.9- cm and 129.7-cm. P(128.9-cm < M < 129.7-cm) =

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 128.3-cm and a standard deviation of 2.2-cm. For shipment, 7 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is between 128.9- cm and 129.7-cm. P(128.9-cm < M < 129.7-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. Check Answer
Transcribed Image Text:A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 128.3-cm and a standard deviation of 2.2-cm. For shipment, 7 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is between 128.9- cm and 129.7-cm. P(128.9-cm < M < 129.7-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. Check Answer
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