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Calculate the z statistic

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Reference no: EM132862103

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.

Suppose a follow-up survey shows that 13 of 100 persons now rate Pepsi as being "concerned with my health."

Calculate the z statistic. (Round your answer to 3 decimal places.)

zcalc

At α = .05, would a follow-up survey showing that 13 of 100 persons now rate Pepsi as being "concerned with my health" provide sufficient evidence that the percentage has increased?

Reference no: EM132862103

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