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40 random persons having voting right were questioned in Tartu, 30 of them intended to participate in elections. The same numbers in Tallinn were 70 and 40.
- How surely (in percentages) can we conclude that participation will be different in these cities?
- Is this certainty enough for a scientific inferrence?
You shold make a 2 x 2 condingency table before using chi squared test because the ferquency of negative answers is directly not mentioned in the exercise text. Chi squared test
in the SDC.