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Smartphones and purchases. A Google research study asked

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition | ISBN: 9781464158933 | Authors: David S. Moore, George P. McCabe, Bruce A. Craig ISBN: 9781464158933 206

Solution for problem 8.1 Chapter 8

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition

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Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition | ISBN: 9781464158933 | Authors: David S. Moore, George P. McCabe, Bruce A. Craig

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition

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Problem 8.1

Smartphones and purchases. A Google research study asked 5013 smartphone users about how they used their phones. In response to a question about purchases, 2657 reported that they purchased an item after using their smartphone to search for information about the item.3 (a) What is the sample size n for this survey? (b) In this setting, describe the population proportion p in a short sentence. (c) What is the count X? Describe the count in a short sentence. (d) Find the sample proportion p.

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ST 260 Chapter 5 Note. Part 1 – 2/10/14 Prof. Cali Davis Quick Recall: ­ Quantitative Variables: differences that have meaning to them, such as age, income, height, and weight. ­ Qualitative Variable (OR categorical): putting people or things into classifications. Such as: gender, race, occupation, country, or political affliction. Statistics can be described as “the science of decision­making in the face of uncertainty” (An educated guess) So how do we measure uncertainty ­ Using probability: A numerical value or measure of the LIKLIHOOD that a certain outcome or event occurs. P(A)= probability of eventA

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Chapter 8, Problem 8.1 is Solved
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Textbook: Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card
Edition: 8
Author: David S. Moore, George P. McCabe, Bruce A. Craig
ISBN: 9781464158933

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Smartphones and purchases. A Google research study asked