A manufacturer knows that their items have a normally distributed lifespan, with a mean of 5.5 years, and standard deviation of 0.9 years.If 5 items are picked at random, 9% of the time their mean life will be less than how many years?Give your answer to one decimal place. [Text box for input]

GivenMean(μ)=5.5standard deviation(σ)=0.9sample size(n)=5

Answered: A manufacturer knows that their items…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A manufacturer knows that their items have a normally distributed lifespan, with a mean of 5.5 years, and standard deviation of 0.9 years. If 5 items are picked at random, 9% of the time their mean life will be less than how many years? Give your answer to one decimal place.