Mathematics, 24.04.2020 23:04 tracijp

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 18 of 100 persons now rate Pepsi as being "concerned with my health".
Calculate the z statistic. (Round your answer to 2 decimal places.)

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In a recent survey, 10 percent of the participants rated Pepsi as being "concerned with my health."...