2. In a study of the life expectancy of 400 people in a certain geographic region, themean age at death was 70 years, and the standard deviation was 5.1 years. If asample of 50 people from this region is selected, what is the probability that themean life expectancy will be less than 68 years?3. The average cholesterol content of a certain canned goods is 215 milligrams, and

Given that μ= 70 , σ= 5.1 , n= 50 Formula for Z-score Z=(x̄-μ)/(σ/√n)

Answered: 2. In a study of the life expectancy 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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2. In a study of the life expectancy of 400 people in a certain geographic region, the mean age at death was 70 years, and the standard deviation was 5.1 years. If a sample of 50 people from this region is selected, what is the probability that the mean life expectancy will be less than 68 years?