Steel rods are manufactured with a mean length of 21 centimeter (cm). Because of variability in the manufacturing process, the lengths of the rods are approximately normally distributed with a standard deviation of 0.09 cm. Complete parts (a) to (d). (a) What proportion of rods has a length less than 20.9 cm? 0.1335 (Round to four decimal places as needed.) (b) Any rods that are shorter than 20.82 cm or longer than 21.18 cm are discarded. What proportion of rods will be discarded? 0.0456 (Round to four decimal places as needed.) (c) Using the results of part (b), if 5000 rods are manufactured in a day, how many should the plant manager expect to discard? 228 (Use the answer from part b to find this answer. Round to the nearest integer as needed.) (d) If an order comes in for 10,000 steel rods, how many rods should the plant manager expect to manufacture if the order states that all rods must be between 20.9 cm and 21.1 cm? ☐ (Round up to the nearest integer.)

Steel rods are manufactured with a mean length of 21 centimeter (cm). Because of variability in the manufacturing process, the lengths of the rods are approximately normally distributed with a standard deviation of 0.09 cm. Complete parts (a) to (d). (a) What proportion of rods has a length less than 20.9 cm? 0.1335 (Round to four decimal places as needed.) (b) Any rods that are shorter than 20.82 cm or longer than 21.18 cm are discarded. What proportion of rods will be discarded? 0.0456 (Round to four decimal places as needed.) (c) Using the results of part (b), if 5000 rods are manufactured in a day, how many should the plant manager expect to discard? 228 (Use the answer from part b to find this answer. Round to the nearest integer as needed.) (d) If an order comes in for 10,000 steel rods, how many rods should the plant manager expect to manufacture if the order states that all rods must be between 20.9 cm and 21.1 cm? ☐ (Round up to the nearest integer.)

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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