Statistical analysis-hypothesis testing

Reference no: EM13111495

In a recent survey, 10 percent of the participants rated Pepsi as being "concerned with my health." PepsiCo's response included a new "Smart Spot" symbol on its products that meet certain nutrition criteria, to help consumers who seek more healthful eating options. At α = .05, would a follow-up survey showing that 18 of 100 persons now rate Pepsi as being "concerned with my health" prove that the percentage has increased? (Data are from The Wall Street Journal, July 30, 2004.)

Reference no: EM13111495

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