Their AM or FM radio stations are still the primary daily device of 30% of the sample. That's a 9% drop in primary preference. Internet radio and cell phones with the increasing penetration of smartphones. Study sample information:
Sample size: 3000 persons 13+, Error +/- 1.8%
Study was conducted on a national geographic footprint with the following regional sample proportions:
Northeast: 19%, Midwest: 23%, South: 35%, West: 23%
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