QUESTION 2a) Measurements of the length of a random sample of 200 rods made by a certain machineduring one week showed a mean of 0.824m and a standard deviation of 0.042m. Find a95% confidence interval for the mean length of all the rods.b) Suppose that the diameters of 100 balls in a sports hall represent a random sample of thediameters of all 1546 in the sports hall. Using the table given, determine unbiased andefficient estimates of:i. the true mean.ii. the true variance.Diameters of 100 Balls in the Sports HallDiameterNumber of(inches)Balls60-6263–651866-684269–712772-748Total = 100

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Answered: JESTION 2 a) Measurements of the length…

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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JESTION 2 a) Measurements of the length of a random sample of 200 rods made by a certain machine during one week showed a mean of 0.824m and a standard deviation of 0.042m. Find a 95% confidence interval for the mean length of all the rods.