Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)
Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)
7th Edition
ISBN: 9781337298353
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
Publisher: South-Western College Pub
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Chapter 6.2, Problem 23E

The time needed to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. Answer the following questions.

  1. What is the probability of completing the exam in one hour or less?
  2. What is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes?
  3. Assume that the class has 60 students and that the examination period is 90 minutes in length. How many students do you expect will be unable to complete the exam in the allotted time?

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Chapter 6 Solutions

Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)

Ch. 6.1 - The random variable x is known to be uniformly...Ch. 6.1 - Delta Airlines quotes a flight time of 2 hours, 5...Ch. 6.1 - Prob. 4ECh. 6.1 - In October 2012, Apple introduced a much smaller...Ch. 6.2 - A random variable is normally distributed with a...Ch. 6.2 - Prob. 12ECh. 6.2 - Prob. 15ECh. 6.2 - Prob. 19ECh. 6.2 - The time needed to complete a final examination in...Ch. 6.2 - New York City is the most expensive city in the...
Ch. 6.3 - Prob. 29ECh. 6.3 - Wendy's restaurant has been recognized for having...Ch. 6 - Prob. 33SECh. 6 - The port of South Louisiana. located along 54...Ch. 6 - Prob. 45SECh. 6 - Specialty Toys Specialty Toys, Inc. sells a...Ch. 6 - Specialty Toys Specialty Toys, Inc. sells a...Ch. 6 - Specialty Toys Specialty Toys, Inc. sells a...Ch. 6 - Gebhardt Electronics Gebhardt Electronics produces...Ch. 6 - Gebhardt Electronics Gebhardt Electronics produces...Ch. 6 - Gebhardt Electronics Gebhardt Electronics produces...
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