According to estimates from the federal government's 2010 National Health Interview Survey, based on face-to-face interviews in
Question:
a) Polling agencies won't phone cell phone numbers because customers object to paying for such calls. What proportion of U.S. households can be reached by a landline call?
b) Are having a cell phone and having a landline independent? Explain.
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Related Book For
Stats Data And Models
ISBN: 662
4th Edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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