2. A random survey of 334 households inMilwaukee County reveals an average of 2.5children per household with a standarddeviation of 3.2 children. What is theprobability that the average number ofchildren per household in Milwaukee Countyexceeds 3.0? In other words, find p(µ>3.0). (5

Given information is:The average number of children exceeded the average number of children per…

Answered: 2. A random survey of 334 households in…

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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The lifetime of a lightbulb in a certain application is normally distributed with mean μ = 1,500 hours and standard deviation σ = 200 hours. 1. What is the probability that a lightbulb will last more than 1800 hours? (Round the final answer to four decimal places.) 2. Find the 10th percentile of the lifetimes. (Round the final answer to the nearest integer.) 3. A particular lightbulb lasts 1645 hours. What percentile is its lifetime on? (Round the final answer to the nearest whole number.)
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2. A random survey of 334 households in Milwaukee County reveals an average of 2.5 children per household with a standard deviation of 3.2 children. What is the probability that the average number of children per household in Milwaukee County exceeds 3.0? In other words, find p(μ>3.0). (5