Question: A survey on a proportion of population using a certain product was conducted in four different cities, in each 200 people were interviewed. Test the

A survey on a proportion of population using a certain product was conducted in four different cities, in each 200 people were interviewed. Test the hypothesis that the proportion of users of the product is the same in each city if the numbers of people using the product were 34, 52, 41, 45, respectively. Use α = 0.10.

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