In a study of life expectancy in a certain region, the mean age at deathwas 70 years, and the standard deviation was 5 years. The life expectancy(years) is assumed to follow a skewed distribution. Suppose that a randomsample of 45 people from this region is selected.The mean life expectancy (years) of the sample is considered a randomvariable. What is the probability that the sample mean life expectancy isbetween 68 to 72 years? Assume that Z follows a standard normaldistribution.O P(-4

The mean is 70 and standard deviation is 5. The sample size is 45.

Answered: In a study of life expectancy in 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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