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In Bakersfield, California, a random sample of 400 adults were chosen to study the relationship between...

In Bakersfield, California, a random sample of 400 adults were chosen to study the relationship between being religious and participating in the presidential election. 140 out of 200 religious people voted. 40 out of 100 non-religious people voted. Calculate a z-statistic for the difference between proportions. State the critical value. Let it be a two-tailed test where α= 0.05. And come to a conclusion about the difference between proportions.

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