The lifetime of a certain type of battery is normally distributedwith mean value 10 hours and standard deviation1 hour. There are four batteries in a package. What lifetimevalue is such that the total lifetime of all batteries ina package exceeds that value for only 5% of all packages?
The lifetime of a certain type of battery is normally distributedwith mean value 10 hours and standard deviation1 hour. There are four batteries in a package. What lifetimevalue is such that the total lifetime of all batteries ina package exceeds that value for only 5% of all packages?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 4CYU
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Question
The lifetime of a certain type of battery is normally distributed
with
1 hour. There are four batteries in a package. What lifetime
value is such that the total lifetime of all batteries in
a package exceeds that value for only 5% of all packages?
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