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 a standard deviation of 6.7 items for machine B. The mean hourly amount produced by machine A for a random sample of 54 hours was 226 units; the mean hourly amount produced by machine B for a random sample of 45 hours was 215 units. Find a 99% confidence interval for the difference in mean parts produced per hour by these two machines. t The confidence interval is

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 a standard deviation of 6.7 items for machine B. The mean hourly amount produced by machine A for a random sample of 54 hours was 226 units; the mean hourly amount produced by machine B for a random sample of 45 hours was 215 units. Find a 99% confidence interval for the difference in mean parts produced per hour by these two machines. t The confidence interval is

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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