Using random digit dialing, researchers call 1400 people and ask what obstacles (such as childcare) keep them

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Using random digit dialing, researchers call 1400 people and ask what obstacles (such as childcare) keep them from exercising.
Identify the sampling technique used, and discuss potential sources of bias (if any). Explain.

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Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: Nov 24, 2015 05:52 AM

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Using random digit dialing, researchers call 1400 people and ask what obstacles (such as childcare) keep them

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Simple random sampling is used because each telephone number has ...View the full answer

Elementary Statistics Picturing The World

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