Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
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Textbook Question
Chapter 7, Problem 85H
Suppose In a local Kindergarten through 12th grade (K- 12) school district. 53 percent of the population favor a charter school for grades K through five. A simple random sample of 300 is surveyed. Calculate following using the normal approximation to the binomial distribtion.
a. Find the
b. Find the probability that 170 or more favor a charter school for grades K through 5.
c. Find the probability that no more than 1.0 favor a charter school for grades K through 5.
d. Find the probability that there are fewer than 130 that favor a charter school for grades K through 5.
e. Find the probability that exactly 150 favor a charter school for grades K through 5.
If you have access to an appropriate calculator or computer software, try calculating these probabilities using the technology
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Chapter 7 Solutions
Introductory Statistics
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Barbara, Kathy and Roberta,...Ch. 7 - XN (60, 9). Suppose that you form random samples...Ch. 7 - Suppose that the length of research papers is...Ch. 7 - Salaries for teachers In a particular elementary...Ch. 7 - The average length of a maternity stay In a U.S....Ch. 7 - For each problem. wherever possible, provide...Ch. 7 - Men have an average weight of 172 pounds with a...Ch. 7 - M&M candies large candy bags have a claimed net...Ch. 7 - The Screw Right Company claims their 34 inch...Ch. 7 - Your company has a contract to perform preventive...Ch. 7 - A typical adult has an average IQ score of 105...Ch. 7 - Certain coins have an average weight of 5.201...
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