Question
A well-known brand of size D batteries has a lifetime that is normally distributed with a mean of 105 hours and a standard deviation of
A well-known brand of size D batteries has a lifetime that is normally distributed with a mean of 105 hours and a standard deviation of 20 hours. Please provide mini-tab steps and solution
A.What proportion of the batteries has a lifetime of less than 85 hours?
B.If a person buys 1 battery of this type, what would be the probability that its lifetime would be between 75 and 90 hours?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
Quantitative Analysis For Management
Authors: Barry Render, Ralph M. Stair, Michael E. Hanna
11th Edition
9780132997621, 132149117, 132997622, 978-0132149112
