A manufacturer knows that the number of items produced per hour by machine A and by machine B are normally distributed with a standard deviation of 4.4 items for machine A and astandard deviation of 6.5 items for machine B. The mean hourly amount produced by machine A for a random sample of 57 hours was 229 units; the mean hourly amount produced bymachine B for a random sample of 47 hours was 215 units. Find a 99% confidence interval for the difference in mean parts produced per hour by these two machines.The confidence interval is

Sample sizes n1=57,n2=47Sample means x1=229 ,x2=215

Answered: ufacturer knows that the number of…

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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