The lengths of lumber a machine cuts are normally distributed with a mean of 101 inches and a standard deviation of 0.7 inch. (a) What is the probability that a randomly selected board cut by the machine has a length greater than 101.25 inches? (b) A sample of 45 boards is randomly selected. What is the probability that their mean length is greater than 101.25 inches? (a) The probability is. (Round to four decimal places as needed.) (b) The probability is (Round to four decimal places as needed.)

The lengths of lumber a machine cuts are normally distributed with a mean of 101 inches and a standard deviation of 0.7 inch. (a) What is the probability that a randomly selected board cut by the machine has a length greater than 101.25 inches? (b) A sample of 45 boards is randomly selected. What is the probability that their mean length is greater than 101.25 inches? (a) The probability is. (Round to four decimal places as needed.) (b) The probability is (Round to four decimal places as needed.)

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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