Who said, "I only know that half of my advertising is working; I just don't know what half."

Name: Who said, "I only know that half of my advertising is working; I just don't know what half."
Brand: Quizplus
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Quizplus · Accepted Answer

John Wanamaker, a pioneering merchant and marketing innovator, is credited with saying, "I only know that half of my advertising is working; I just don't know what half." This quote reflects the difficulty of measuring the effectiveness of advertising, a challenge that marketers still face today.

Who Said, "I Only Know That Half of My Advertising