A city planning board wishes to determine whether a local community has any difference in preference of a particular portion of green space would be better utilized as either a dog park or playground. If so, they will investigate further to make their decision. They randomly select two samples of 500 individuals. They ask the first sample if they would use a dog park in this green space. They asked the second sample if they would use a playground in this green space. There were 178 positive responses in the first sample and 139 in the second. The city planning board will use this data to test Ho: P₁ = P2 against Ha P1 P2. What is their test statistic for this test? Round your answer to two decimal places.

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