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Various claims are often made for surveys. Why is each of the following claims not

Stats Modeling the World | 4th Edition | ISBN: 9780321854018 | Authors: David E. Bock, Paul F. Velleman, Richard D. De Veaux ISBN: 9780321854018 481

Solution for problem 1 Chapter 11

Stats Modeling the World | 4th Edition

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Stats Modeling the World | 4th Edition | ISBN: 9780321854018 | Authors: David E. Bock, Paul F. Velleman, Richard D. De Veaux

Stats Modeling the World | 4th Edition

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Problem 1

Various claims are often made for surveys. Why is each of the following claims not correct? a) It is always better to take a census than to draw a sample. b) Stopping students on their way out of the cafeteria is a good way to sample if we want to know about the quality of the food there. c) We drew a sample of 100 from the 3000 students in a school. To get the same level of precision for a town of 30,000 residents, well need a sample of 1000. d) A poll taken at a statistics support website garnered 12,357 responses. The majority said they enjoy doing statistics homework. With a sample size that large, we can be pretty sure that most Statistics students feel this way, too. e) The true percentage of all Statistics students who enjoy the homework is called a population statistic.

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Chapter 14 Scatterplot: Relationship between 2 quantitative variable measured by the same individual. X axis: explanatory variable/ independent variable (Think I the scientist can control) Y axis: response variable/ dependent  Example: The growth of a plant (inches) and the amount of sunlight given (seconds).  Seconds of sunlight is the Independent variable ( something that can be controlled)  Inches the plant grows would be the Dependent variable ( depends on the amount of light given)  Sunlight (seconds) should be on the x axis Interpreting Scatterplots  Look at overall pattern  Look for outliers  Described by form, direction and strength Form: clustered, curved, linear Strength: How close points follow the form

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Chapter 11, Problem 1 is Solved
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Textbook: Stats Modeling the World
Edition: 4
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
ISBN: 9780321854018

The answer to “Various claims are often made for surveys. Why is each of the following claims not correct? a) It is always better to take a census than to draw a sample. b) Stopping students on their way out of the cafeteria is a good way to sample if we want to know about the quality of the food there. c) We drew a sample of 100 from the 3000 students in a school. To get the same level of precision for a town of 30,000 residents, well need a sample of 1000. d) A poll taken at a statistics support website garnered 12,357 responses. The majority said they enjoy doing statistics homework. With a sample size that large, we can be pretty sure that most Statistics students feel this way, too. e) The true percentage of all Statistics students who enjoy the homework is called a population statistic.” is broken down into a number of easy to follow steps, and 147 words. The full step-by-step solution to problem: 1 from chapter: 11 was answered by , our top Statistics solution expert on 03/16/18, 04:57PM. This textbook survival guide was created for the textbook: Stats Modeling the World, edition: 4. Since the solution to 1 from 11 chapter was answered, more than 241 students have viewed the full step-by-step answer. Stats Modeling the World was written by and is associated to the ISBN: 9780321854018. This full solution covers the following key subjects: . This expansive textbook survival guide covers 31 chapters, and 1357 solutions.

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Various claims are often made for surveys. Why is each of the following claims not