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he lengths of lumber a machine cuts are normally distributed with a mean of 91 inches and a standard deviation of 0.4 inch. ) What is the probability that a randomly selected board cut by the machine has a length greater than 91.15 inches? p) A sample of 44 boards is randomly selected. What is the probability that their mean length is greater than 91.15 inches? ..... (a) The probability is . (Round to four decimal places as needed.)

he lengths of lumber a machine cuts are normally distributed with a mean of 91 inches and a standard deviation of 0.4 inch. ) What is the probability that a randomly selected board cut by the machine has a length greater than 91.15 inches? p) A sample of 44 boards is randomly selected. What is the probability that their mean length is greater than 91.15 inches? ..... (a) The probability is . (Round to four decimal places as needed.)

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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The lengths of lumber a machine cuts are normally distributed with a mean of 91 inches and a standard deviation of 0.4 inch. (a) What is the probability that a randomly selected board cut by the machine has a length greater than 91.15 inches? (b) A sample of 44 boards is randomly selected. What is the probability that their mean length is greater than 91.15 inches? (a) The probability is . (Round to four decimal places as needed.) Get More Help - Clear All Check Answer * Previous Next stv Aa MacBook Air DI DD F7 F8 F9 F10 F11 F12 & * + 7 8 %3D delete { U P J K L M + ||
Transcribed Image Text:The lengths of lumber a machine cuts are normally distributed with a mean of 91 inches and a standard deviation of 0.4 inch. (a) What is the probability that a randomly selected board cut by the machine has a length greater than 91.15 inches? (b) A sample of 44 boards is randomly selected. What is the probability that their mean length is greater than 91.15 inches? (a) The probability is . (Round to four decimal places as needed.) Get More Help - Clear All Check Answer * Previous Next stv Aa MacBook Air DI DD F7 F8 F9 F10 F11 F12 & * + 7 8 %3D delete { U P J K L M + ||
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