A normally distributed population has a mean of 450 and a standard deviation of 45.a. Determine the probability that a random sample of size 9 selected from this population will have a sample mean less than 430.b. Determine the probability that a random sample of size 25 selected from the population will have a sample mean greater than or equal to469.a. P(x<430) =(Round to four decimal places as needed.)b. P(x≥ 469) =(Round to four decimal places as needed.)

Answered: Image /qna-images/answer/bf0bc771-cc05-419a-aa6b-9e9727859e9e.jpg

Answered: A normally distributed population has a…

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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