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Survey on Internet Awareness In a survey, 58% of American adults said they had never

Elementary Statistics: A Step by Step Approach | 7th Edition | ISBN: 9780073534978 | Authors: Allan G. Bluman ISBN: 9780073534978 253

Solution for problem 25 Chapter 5-3

Elementary Statistics: A Step by Step Approach | 7th Edition

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Elementary Statistics: A Step by Step Approach | 7th Edition | ISBN: 9780073534978 | Authors: Allan G. Bluman

Elementary Statistics: A Step by Step Approach | 7th Edition

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Problem 25

Survey on Internet Awareness In a survey, 58% of American adults said they had never heard of the Internet. If 20 American adults are selected at random, find the probability that exactly 12 will say they have never heard of the Internet.

Step-by-Step Solution:
Step 1 of 3

Lecture 11/6/2017 CI for μ: (x-bar – E, x-bar + E) np ≥ s and nq ≥ 5 OR np^ ≥ 5 and nq^ ≥ 5 OR A court of at least 5 in each category. CI for pˆ= (pˆ – E, pˆ + E) where E = Z√((cˆ)(qˆ)/n) pˆ= x/n or y/n qˆ= 1 - pˆ Z = (pˆ– p)/(√((pˆ)(qˆ)/n)) n = (pˆ)(qˆ)(Z/Ec 2 OR n = ½ • ½ (Z/E)c= ¼((Z/E) c 2 → Lecture 11/8/2017 ← → Chapter 7: One...

Step 2 of 3

Chapter 5-3, Problem 25 is Solved
Step 3 of 3

Textbook: Elementary Statistics: A Step by Step Approach
Edition: 7
Author: Allan G. Bluman
ISBN: 9780073534978

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Survey on Internet Awareness In a survey, 58% of American adults said they had never

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