A political psychologist is interested in whether the community a person lives in is related to that person's opinion on an upcoming water conservation ballot initiative. The psychologist surveys 90 people by phone with the following results. Is opinion related to community at the .05 level?
(a) Carry out the steps of hypothesis testing.
(c) Figure the effect size.

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Community A 12 18 12 Community B Community C For Against No opinion 15 12