Life of Smoke Detectors The average lifetime of smoke detectors that a company manufactures is 5 years, or 60 months, and the standard deviation is8 months. Find the probability that a random sample of 30 smoke detectors will have a mean lifetime between 58 and 63 months. Assume that the sample istaken from a large population and the correction factor can be ignored. Use The Standard Normal Distribution Table. Round the final answer to at least fourdecimal places and intermediate z-value calculations to two decimal places.P(58 < X<63) = -0.92X

Final Answer-0.8945 (Round to two decimal places)Explanation:Step 1: Step 2: Step 3: Step 4:

Answered: Life of Smoke Detectors The average…

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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ents this quarter: The Environmental Protection Agency (EPA) fuel economy estimates for automobile models tested recently predicted a mean of 25.8 miles per gallon, with a standard deviation of 5.2 miles per gallon. Assume that a Normal model applies. Find the probability that a randomly selected automobile will average: 1. Less than 21 miles per gallon. 2. More than 15 miles per gallon. 3. Between 24 and 30 miles per gallon. ular paper, making sure to number each problem so I know what work goes with which problem. e sure to complete and sign the academic honesty statement for each assignment you complete this quarter. If you a nvas. Make sure to check your f6ler for legibility and completeness before unlnading
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