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.

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...
icon
Related questions
Question
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]
Transcribed Image Text: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]
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON