3-40. A computer laboratory in a school has 33 computers. Each of the 33 com- puters has 90% reliability. Allowing for 10% of the computers to be down, an instructor specifies an enrollment ceiling of 30 for his class. Assume that a class of 30 students is taken into the lab. a. What is the probability that each of the 30 students will get a computer in working condition? b. The instructor is surprised to see the low value of the answer to (a) and decides to improve it to at least 95% by doing one of the following: i. Decreasing the enrollment ceiling. ii. Increasing the number of computers in the lab. iii. Increasing the reliability of all the computers. To help the instructor, find out what the increase or decrease should be for each of the three alternatives.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
3-40. A computer laboratory in a school has 33 computers. Each of the 33 com-
puters has 90% reliability. Allowing for 10% of the computers to be down, an instructor
specifies an enrollment ceiling of 30 for his class. Assume that a class of 30 students is
taken into the lab.
a. What is the probability that each of the 30 students will get a computer in
working condition?
b. The instructor is surprised to see the low value of the answer to (a) and
decides to improve it to at least 95% by doing one of the following:
i. Decreasing the enrollment ceiling.
ii. Increasing the number of computers in the lab.
iii. Increasing the reliability of all the computers.
To help the instructor, find out what the increase or decrease should be for each of
the three alternatives.
Transcribed Image Text:3-40. A computer laboratory in a school has 33 computers. Each of the 33 com- puters has 90% reliability. Allowing for 10% of the computers to be down, an instructor specifies an enrollment ceiling of 30 for his class. Assume that a class of 30 students is taken into the lab. a. What is the probability that each of the 30 students will get a computer in working condition? b. The instructor is surprised to see the low value of the answer to (a) and decides to improve it to at least 95% by doing one of the following: i. Decreasing the enrollment ceiling. ii. Increasing the number of computers in the lab. iii. Increasing the reliability of all the computers. To help the instructor, find out what the increase or decrease should be for each of the three alternatives.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 5 images

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman