A large manufacturing company investigated the service it received from suppliers anddiscovered that, in the past, 32% of all materials shipments were received late. However, thecompany recently installed a just-in-time system in which suppliers are linked more closely tothe manufacturing process. A random sample of 110 deliveries since the just-in-time systemwas installed reveals that 22 deliveries were late. Use this sample information to test whetherthe proportion of late deliveries was reduced significantly. Let a = 0.05.a)Show the verification that the sampling distribution of the proportion is normal.b)Follow the procedure for tests of hypothesis and use a 5% level of significance. Use thefollowing hypotheses ..Ho: p = 0.32%3DH1: p < 0.32

Solution-: Given: n=110,x=22,P0=0.32,α=0.05 (a) Show the verification that the sampling distribution…

Answered: A large manufacturing company…

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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