Question 8 The lifetimes of interactive computer chips produced by a certain semiconductor manufacturer are normally distributed having mean 4.4 × 10° hours with a standard deviation of 3 x 10$ hours. a) If a mainframe manufacturer requires that at least 90 percent of the chips from a large batch will have lifetimes of at least 4.0 × 10° hours, should he contract with the semiconductor firm? b) What is the probability that a batch of 100 chips will contain at least 4 whose lifetimes are less than 3.8 ×10° hours?

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
Question 8 The lifetimes of interactive computer chips produced by a certain semiconductor
manufacturer are normally distributed having mean 4.4 × 10° hours with a standard deviation of
3 x 10$ hours.
a) If a mainframe manufacturer requires that at least 90 percent of the chips from a large
batch will have lifetimes of at least 4.0 × 10° hours, should he contract with the
semiconductor firm?
b) What is the probability that a batch of 100 chips will contain at least 4 whose lifetimes
are less than 3.8 ×10° hours?
Transcribed Image Text:Question 8 The lifetimes of interactive computer chips produced by a certain semiconductor manufacturer are normally distributed having mean 4.4 × 10° hours with a standard deviation of 3 x 10$ hours. a) If a mainframe manufacturer requires that at least 90 percent of the chips from a large batch will have lifetimes of at least 4.0 × 10° hours, should he contract with the semiconductor firm? b) What is the probability that a batch of 100 chips will contain at least 4 whose lifetimes are less than 3.8 ×10° hours?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 3 images

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