7. 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,

(b) make a sketch of the distribution,

(c) figure the effect size, and

(d) explain your answer to part

(a) to a person who has never taken a course in statistics.

Community A Community B Community C For 12 6 3 Against 18 3 15 No opinion 12 9 12